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BỘ THÔNG TIN VÀ TRUYỀN THÔNG
HỌC VIỆN CÔNG NGHỆ BƯU CHÍNH VIỄN THÔNG
*****
BÀI GIẢNG MÔN CFA
Mã môn học: FIA 1402
(03 tín chỉ)
Biên soạn
ThS. Nguyễn Đình Tú
Hà Nội – 2015
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MỤC LỤC
Lời mở đầu ........................................................................................................................................ 3
1. Chủ đề 1: Corporate Finance ........................................................................................................... 4
1.1 Capital Budgeting .................................................................................................................... 4
1.2 Cost of Capital .......................................................................................................................13
1.3 Measures of leverage .............................................................................................................24
1.4 Dividends and Share Repurchases ........................................................................................24
1.5 Working capital management ................................................................................................33
1.6 Corporate Governance ...........................................................................................................33
2 Chủ đề 2: Market Organization .....................................................................................................36
2.1 Market organization and structure .........................................................................................36
2.2 Security market indices .........................................................................................................56
2.3 Market efficiency ..................................................................................................................63
3 Chủ đề 3: Equity Analysis and Valuation .....................................................................................68
3.1 Overview of equity securities ................................................................................................68
3.2 Introduction to industry and company analysis .....................................................................75
3.3 Equity valuation: concepts and basic tools............................................................................85
4 Chủ đề 4: Portfolio Management ................................................................................................108
4.1 Portfolio management overview .........................................................................................108
4.2 Portfolio risk and return ......................................................................................................114
4.3 Portfolio planning and construction ....................................................................................152
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LỜI NÓI ĐẦU
Hiện nay trong chương trình đào tạo ngành Kế toán của Học viện Công nghệ Bưu chính
Viễn thông ngoài những môn học hướng tới ngành đào tạo còn có những môn học sử dụng tài
liệu tiếng Anh chuyên ngành như “CFA”, “Introduction to ACCA”. Những môn học này
ngoài việc bổ sung kiến thức tiếng Anh chyên ngành còn cung cấp kiến thức tài chính kế toán
theo hướng cập nhật các chuẩn mực quốc tế. Tuy nhiên với vốn tiếng Anh còn hạn chế của
sinh viên Học viện, đã tạo ra không ít khó khăn trong công tác giảng dạy và học tập các môn
học này. Nhận thấy vấn đề như trên, kết hợp với chủ trương của Học viện thực hiện biên soạn
bài giảng, giáo trình, slide cho các môn học nhằm đồng bộ hóa tài liệu, tác giả đã thực hiện
biên soạn bài giảng “CFA” dành riêng cho giảng viên và sinh viên ngành kế toán của Học
viện.
Bài giảng được thực hiện biên soạn trên tinh thần tiếp thu nội dung mới nhất những kiến
thức từ chứng chỉ tài chính quốc tế CFA và kế thừa phát huy những điểm mạnh trong bài
giảng của những trường đại học danh tiếng đồng thời dựa trên những kinh nghiệm thực tế
giảng dạy của tác giả. Bài giảng đã hệ thống những nội dung theo đề cương chi tiết đã được
Học viện ban hành: Corporate Finance, Market Organization, Equity Analysis and Valuation,
Portfolio Management
Để bài giảng thực sự trở thành tài liệu hữu ích phục vụ cho hoạt động giảng dạy và học
tập, tác giả mong muốn nhận được những góp ý với tinh thần xây dựng, chia sẻ chân thành từ
phía độc giả.
Xin chân thành cảm ơn!
Hà Nội 06/2015
CHỦ BIÊN
NGUYỄN ĐÌNH TÚ
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1. Chủ đề 1: Corporate Finance
1.1 Capital Budgeting
Thecapital budgetingprocess istheprocessofidentifying andevaluating capitalprojects,
thatis,projectswherethecashflowtothefirmwillbereceivedoveraperiod longerthan
ayear.Anycorporate decisionswith animpact onfuture earningscanbe examined
usingthisframework. Decisions about whether tobuyanewmachine, expand
businessinanother geographic area,movethecorporate headquarters
toCleveland,orreplaceadeliverytruck, tonameafew,canbeexamined
usingacapitalbudgetinganalysis.
Foranumberofgoodreasons,capitalbudgeting m a ybethemostimportant responsibility
t h a t afinancialmanagerhas.First,becauseacapitalbudgeting decis ionoften
involvesthepurchase ofcostlylong-term asse t swithlivesofmanyyears,the
decisionsmademaydetermine thefuture successofthefirm.Second,theprinciples underlying
t h e capitalbudgeting processalsoapplytoother corporatedecisions, such
Asworking capitalmanagement a n d making strategicmergersandacquisitions. Finally,
making goodcapitalbudgeting d ec i s i on s isconsistent withmanagement’s primary
goalofmaximizing shareholdervalue.
The capitalbudgetingprocesshasfour administrativesteps:
Step1: Ideageneration.The mostimportantstepinthecapital budgetingprocess
Isgeneratinggoodproject ideas .Ideascancomefrom anumberofsources includingsenior
management,functionaldivisions, employees , orsources outside thecompany.
Step2: Analyzingprojectproposals.Becausethedecision toacceptorrejectacapital project
isbasedontheproject’s expectedfuture cashflows,acashflowforecast must
bemadeforeachproducttodetermine i t s expectedprofitability.
Step3: Createthefirm-widecapitalbudget.Firmsmust prioritizeprofitableprojects according
tothetiming oftheproject’s cashflows,availablecompany resources, andthecompany’s
overallstrategic plan. Many projectsthatareattractive
ind iv idua l l ymaynotmakesensestrategically.
Step4: Monitoring decis ionsandconductingapost-audit.
Itisimportanttofollowuponallcapital budgetingdecisions. Ananalyst should compare
theactual resultstotheprojectedresults, andproject managers should explain why
projectionsdidordid notmatch actual performance. Becausethecapital budgetingprocess
isonly asgood astheestimates ofthe inputs into themodel usedtoforecast cashflows,apost-
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auditshould beusedtoidentifysystematic errorsintheforecasting processandimprove
companyoperations.
Categories ofCapital Budgeting Projects
Capital budgetingprojects maybedivided intothefollowing categories:
Replacementprojectstomaintain t h e businessarenormallymadewithout
detailedanalysis.The onlyissuesarewhethertheexisting operationsshould continueand,
ifso,whetherexisting procedureso r processesshould bemaintained.
Replacementprojectsfor costreductiondeterminewhetherequipmentthat is obsolete,
butstillusable, shouldbereplaced. Afairlydetailed analysis isnecessary inthiscase.
Expansionprojectsaretaken onto growthebusiness andinvolveacomplexdecision-making
processbecause theyrequire anexplicit forecastoffuture demand.Averydetailed
analysisisrequired.
Newproduct ormarketdevelopmentalsoentails acomplex decision-makingprocessthat
willrequire adetailed analysisdueto thelargeamount o f uncertainty involved.
Mandatoryprojectsmayberequired byagovernmental agencyorinsurance company
andtypically involvesafety-related o r environmentalconcerns.These projects
typicallygeneratelittletonorevenue, buttheyaccompany n e w revenue
producingprojects undertakenbythecompany.
Otherprojects.Someprojects arenot easilyanalyzed throughthecapital budgetingprocess.
Suchprojects mayinclude apetproject ofsenior management(e.g., corporateperks) orahigh-
riskendeavor that isdifficulttoanalyzewith typical capital budgetingassessment
methods(e.g.,research anddevelopmentprojects).
The capitalbudgetingprocessinvolvesfivekeyprinciples:
1. Decisionsarebasedoncash flows, notaccountingincome.Therelevant cashflowsto
consider aspartofthecapital budgetingprocessareincrementalcashflows,the
changesincashflowsthatwilloccuriftheproject isundertaken.
Sunk costs arecoststhat cannotbe avoided, eveniftheproject isnot undertaken.
Becausethesecostsarenotaffected bytheaccept/rejectdecision, t he yshould
notbeincludedintheanalysis.Anexample ofasunk costisaconsultingfeepaid toa
marketingresearch firmtoestimate demandforanewproductprior toadecision
ontheproject.
Externalitiesaretheeffectstheacceptance o f aproject mayhaveonother firm cashflows.The
primaryoneisanegative externality calledcannibalization, whichoccurswhen anewproject
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takessalesfrom anexisting product.When
cons ider ingexternalities,thefullimplicationofthe newproject ( lossinsalesofexisting
products)should betaken intoaccount. Anexample ofcannibalizationiswhen asoftdrink
companyin t roducesadietversion ofanexistingbeverage.The analystshould
subtractthelostsalesoftheexisting beveragefrom theexpected newsales ofthedietversion
whenestimatedincrementalproject cashflows.Apositive externalityexistswhen
doingtheproject wouldhaveapositive effectonsalesofa firm'sother productlines.
Aproject hasaconventionalcashflowpattern ifthesignonthecashflows changes onlyonce,with
oneormore cashoutflows followedbyoneormore cashinflows.
Anunconventionalcashflowpattern hasmore thanonesignchange. Forexample, aproject
mighthaveaninitial investmentoutflow, aseriesofcash inflows, andacashoutflow
forassetretirementcostsattheendoftheproject's life.
2. Cash flowsarebasedonopportunity costs.Opportunity costsarecashflowsthat
afirmwilllosebyundertakingtheproject underanalysis.These arecashflowsgenerated
byanassetthefirmalreadyownsthatwould beforgone iftheproject
underconsiderationisundertaken.Opportunitycostsshould beincludedinproject
costs.Forexample,whenbuildingaplant, evenifthefirmalreadyownstheland,
Thecostofthelandshould bechargedtotheproject becauseitcouldbesoldifnot used.
3. Thetiming ofcash flowsisimportant. Capital budgetingdecisions accountforthe
timevalueofmoney,which meansthat cashflowsreceivedearlierareworth morethan
cashflowstobereceivedlater.
4. Cash flowsareanalyzedonanafter-tax basis.Theimpact oftaxesmust beconsidered
whenanalyzing allcapital budgetingprojects. Firmvalueisbasedoncashflowsthey
gettokeep,notthosetheysendtothegovernment.
5. Financingcostsarereflectedintheproject'srequiredrateofreturn.Donotconsider financing
costsspecifictotheproject whenestimatingincrementalcashflows.The
discountrateusedinthecapital budgetinganalysistakesaccountofthefirm'scostofcapital.
Onlyprojects thatareexpected toreturn morethan thecostofthecapital needed tofund
themwillincreasethevalueofthe firm.
Independentvs.MutuallyExclusiveProjects
Independent projectsareprojects thatareunrelatedtoeachother andallowforeach project
tobeevaluated basedonitsownprofitability.Forexample, ifprojects
AandBareindependent,andboth projectsareprofitable, then thefirmcould acceptboth
projects. Mutuallyexclusive means that onlyoneproject inasetofpossible projects
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canbeaccepted andthat theprojects compete with eachother. Ifprojects AandB
weremutuallyexclusive,thefirmcould accepteither ProjectAorProject B,but
notboth.Acapital budgetingdecision between twodifferentstampingmachines with
different costsandoutput would beanexample ofchoosing between twomutually
exclusiveprojects.
Project Sequencing
Someprojectsmust beundertakeninacertain order,orsequence, sothat investing in aproject
today createstheopportunitytoinvest inother projects inthefuture. For example, if a project
undertakentoday is profitable, that maycreate the opportunity to invest in a second project a
year from now. However, if the project undertakentoday turns out to be unprofitable, the
firm willnot investinthesecond project.
UnlimitedFunds vs.Capital R a t i o n i n g
Ifafirmhasunlimitedaccesstocapital, thefirmcanundertakeallprojects withexpected
returnsthatexceedthecostofcapital. Many firmshaveconstraintsonthe amount o f capital
theycanraiseandmust usecapitalrationing. Ifafirm'sprofitable project
opportunitiesexceedtheamount offundsavailable, thefirmmust ration, or
prioritize,itscapital expenditureswith thegoalofachieving themaximum increase in
valueforshareholders givenitsavailable capital.
Net PresentValue(NPV)
Wefirstexamined thecalculation ofnetpresent value(NPV) inQuantitative Methods.
The NPVisthesumofthepresent valuesofalltheexpected incrementalcashflowsifaproject
isundertaken.The discountrateusedisthefirm'scostofcapital,
adjustedfo r theriskleveloftheproject. Foranormal project, with aninitial cashoutflow
followed byaseriesofexpected after-tax cashinflows, theNPV isthe present
valueoftheexpected inflows minus the initial costoftheproject.
where:
CF0=initial investmentoutlay (anegative cashflow)
CFt=after-tax cash flowattime t
k =required ra t eofreturn forproject
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Apositive NPV project isexpected toincrease shareholder wealth, anegative NPV project
isexpected todecreaseshareholder wealth, and azeroNPV project hasno expected
effectonshareholder wealth.
Forindependent projects, theNPV decisionruleissimply toaccept anyproject with a positive
NPV andtorejectanyproject with anegative NPV.
Example: NPV analysis
Using the project cash flows presented Table 1, compute the NPV of each project’s cash
flows and determine for each project whether it should be accepted or rejected. Assume that
the cost of capital is 10%.
Table 1: Expected Net after - Tax Cash Flows
Year (t) Project A Project B
0 -$2,000 -$2,000
1 1,000 200
2 800 600
3 600 800
4 200 1,200
Answer:
Both Project A and Project B have positive NPVs, so both should be accepted.
InternalRateofReturn ( IRR)
Foranormal project,theinternalrate ofreturn (IRR) isthediscount ratethat makes thepresent
valueoftheexpected incremental after-tax cashinflowsjust equaltothe initial costoftheproject.
Moregenerally, theIRRisthediscount ratethat makes thepresent valuesofaproject'sestimated
cashinflowsequaltothepresent valueofthe project's estimated cashoutflows.That
is ,IRRisthediscount r a t e that makesthe following relationshiphold:
PV(inflows) =PV(outflows)
The IRRisalsothediscount r a t e forwhich theNPV ofaproject isequaltozero:
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TocalculatetheIRR,youmayusethetrial-and-error method. That i s ,just keepguessing
IRRsuntil yougettheright oneoryoumayuseafinancial ca l cu l a to r .
IRRdecisionrule:First, determinetherequired r a t e ofreturn foragivenproject.Thisisusually
thefirm'scostofcapital. Note that the required rateofreturn maybehigher orlowerthan
thefirm'scostofcapital toadjust fordifferences between project riskandthefirm'saverageproject
risk.
IfIRR>therequired ra t eofreturn, a c c e p t theproject.
IfIRR<therequired ra t e ofreturn,rejecttheproject.
Example: IRR
Continuing with the cash flows presented in Table 1 for the projects A and B, compute IRR
for each project, and determine whether to accept or reject each project under the assumptions
that the projects are independent and that required rate of return is 10%.
Answer:
Payback Period
Thepayback pe r iod ( PBP)isthenumberofyearsittakestorecovertheinitial costof
aninvestment.
Example: Paybackperiod
Calculate the payback periods for the two projects that have cash flows presented in Table
1. Note the Year 0 cash flow represents the initial cost of each project.
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Answer:
Note that the cumulative net cash flow (NCF) is just the running the total of the cash flow at
the end of each time period. Payback will occur when the cumulative NCF equals zero. To
find the payback periods, construct Table 4.
Table 4: Cumulative Net Cash Flows
Year 0 1 2 3 4
Project A Net cash flow -2,000 1,000 800 600 200
Cumulative -2,000 -1,000 -200 400 600
Project B Net cash flow -2,000 200 600 800 1,200
Cumulative -2,000 -1,800 -1,200 -400 800
The payback period is determined from the cumulative net cash flow table as follow:
payback period = full years until recovery +
Becausethepayback periodisameasure ofliquidity, forafirmwith liquidity concerns, theshorter
aproject’s paybackperiod, thebetter. However, projectdecisionsshould notbemade
onthebasisoftheir paybackperiodsbecauseofthemethod's drawbacks.
The main drawbacks ofthepayback period arethat itdoesnot takeinto account
eitherthetimevalueofmoney orcashflowsbeyond thepayback period, which means
terminalorsalvagevaluewouldn'tbeconsidered. These drawbacksmeanthatthepayback
periodisuselessasameasure ofprofitability.
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The mainbenefitof thepayback periodisthat itisagoodmeasure ofproject liquidity. Firmswith
limited accesstoadditionalliquidityoften impose amaximum payback period andthen
useameasure ofprofitability, suchasNPV orIRR, to evaluate projects that satisfythismaximum
payback period constraint.
DiscountedPayback Period
The discountedpayback period u s e s thepresent valuesoftheproject’s estimated c a s h
flows.Itisthe numberofyearsittakesaproject torecoveritsinitial investmentin present
valueterms and, therefore,must begreater than thepayback period without discounting.The
discountedpayback periodaddressesoneofthedrawbacks ofthepayback period
bydiscounting cashflowsattheproject’s required r a t eofreturn.However, thediscounted
payback period stilldoesnot consider anycashflowsbeyond thepayback period, which means
that itisapoor measure ofprofitability.Again, itsuseis primarily a s ameasure ofliquidity.
Profitability Index (PI)
Theprofitability index(PI)isthepresent valueofaproject’s future cashflowsdivided
bytheinitial cashoutlay:
The profitabilityindex isrelated closelytonetpresent value.The NPV isthe difference
between thepresent valueoffuture cashflowsandtheinitial cashoutlay, andthePIistheratio
ofthepresent valueoffuture cashflowstothe initial cash outlay.
IftheNPV ofaproject ispositive, thePIwillbegreater thanone. IftheNPV is negative,
thePIwillbelessthan one. Itfollowsthat thedecisionruleforthePIis:
If PI > 1.0, accept the project.
If PI < 1.0, reject the project
A project’s NPVprofile is agraph that shows aproject’s NPVfordifferentdiscount rates.The
NPVprofilesforthetwoprojects describedintheprevious example arepresented inFigure
1.The projectNPVsaresummarizedinthetable below the graph. The discount rates are on the
x-axis of theNPV profile,andthe corresponding NPVs are plotted on the y-axis.
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Figure 1: NPV Profiles
Discount Rate NPVA NPVB
0% 600.00 800.00
5% 360.84 413
10% 157.64 98.36
15% (16.66) (160.28)
Note that the projects' IRRs are the discount rates where the NPV profiles intersect the
x-axis, because these are the discount rates for which NPV equals zero. Recall that the
IRRis thediscount ratethat results in an NPV of zero.
Also notice inFigure 1that the NPV profiles intersect. They intersect at the discount rate for
which NPVs of the projects are equal, 7.2%. This rate at which the NPVs are equal is called
the crossover rate. At discount rates below 7.2% (to the left of the intersection), Project B
has the greater NPV, and at discount rates above 7.2%, Project A has a greater NPV.
Clearly, the discount rate used in the analysis can determine which one of two mutually
exclusive projects will be accepted. The NPVprofilesforprojects AandBintersect
b ecau s e ofadifference inthetiming ofthecashflows.Examining thecashflowsfortheprojects
(Table1),wecanseethat thetotal cashinflows forProject Baregreater ($2,800) than those
ofProject A ($2,600). Becausetheyboth havethesameinitial cost ($2,000) atadiscount rateof
zero, Project Bhasagreater NPV (2,800 - 2,000 = $800) than ProjectA(2,600 -2,000 = $600).
Wecanalsoseethat thecashflowsforProject Bcomelater intheproject’s life.That's whytheNPV
ofProject Bfallsfasterthan theNPV ofProjectAasthediscount rate increases, and theNPVs
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areeventually equalatadiscount rateof7.2%. Atdiscount ratesabove7.2%, thefactthat thetotal
cashflowsofProject Baregreater innominal dollars isoverridden bythefactthat Project
B'scashflowscomelater intheproject's lifethan those ofProject A.
Example: Crossover rate
Two projects have the following cash flows:
20X1 20X2 20X3 20X4
Project A -550 150 300 450
Project B -300 50 200 300
What is crossover rate for Project A and project B?
Answer:
The crossover rate is the discount rate that makes the NPVs of Projects A and B equal. That
is, it makes the NPV of the differences between the two projects’ cash flows equal zero.
To determine crossover rate, subtract the cash flows of the Project B from those of project A
and calculate the IRR of the differences.
20X1 20X2 20X3 20X4
Project A - Project B -250 100 100 150
CF0 = -250; CF1 = 100; CF2 = 100; CF3= 150; CPT IRR = 17.5%
1.2 Cost of Capital
The capitalbudgeting process involvesdiscounted c a s h flowanalysis.Toconductsuch
analysis,youmust knowthefirm'sproper discountrate .This topicreviewdiscusseshow,
asananalyst,youcandetermine t h e proper rateatwhich todiscountthecashflows
associatedwithacapitalbudgeting project .This discountrate isthefirm'sweighted
averagecostofcapital (WACC)andisalsoreferredtoasthemarginalcostofcapital (MCC).
Basicdefinitions.On theright (liability)sideofafirm'sbalancesheet,wehavedebt, preferred
stock,andcommon equi ty.Thesearenormally referredtoasthecapital
componentsofthefirm.Anyincreaseinafirm'stotalassetswillhavetobefinanced
throughanincreaseinatleastoneofthesecapitalaccounts. Thecostofeachofthese components
i s calledthecomponentcostofcapital.
Throughoutthisreview, wefocusonthefollowingcapitalcomponents a n d their
componentcosts:
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kid: The rateatwhich thefirmcanissuenewdebt.This istheyieldto
maturityonexistingdebt.This isalsocalledthebefore-tax component costofdebt.
Kd(l- t): The after-tax costofdebt. Here, tis thefirm'smarginal taxrate.The after
taxcomponentcostofdebt, kd(l-t),isusedtocalculate theWACC.
Kps: The costofpreferred stock.
Kce: The costofcommon equity.Itistherequired rateofreturn oncommon
stockandisgenerallydifficulttoestimate.
Inmanycountries, theinterest paidoncorporate debtistaxdeductible. Becauseweare interested
intheafter-tax costofcapital,weadjust thecostofdebt, kd,forthefirm's marginal
taxrate,t.Becausethereistypicallynotaxdeduction allowedforpayments to common orpreferred
stockholders, thereisnoequivalent deduction tokpsorkce·
Howacompany raisescapitalandhowitbudgetsorinvestsitareconsidered
independently. Mostcompanieshaveseparatedepartments forthetwotasks.Thefinancing
department isresponsibleforkeepingcostslowandusingabalanceoffunding sources: common
equity,preferredstock,anddebt.Generally,itisnecessarytoraiseeachtypeofcapitalinlargesums.Th
elargesumsmaytemporarily overweightthemostrecently
issuedcapital,butinthelongrun,thefirmwilladheretotargetweights.Becauseofthese
andotherfinancingconsiderations,eachinvestment decisionmustbemadeassuminga
WACC,whichincludeseachofthedifferentsourcesofcapitalandisbasedonthelong
runtargetweights.Acompanycreatesvaluebyproducing areturn onassetsthatishigher
thantherequiredrateofreturn onthecapitalneededtofundthoseassets.
TheWACC, aswehavedescribed it,isthecostoffinancing firmassets.Wecanview
thiscostasanopportunitycost.Consider howacompany couldreduceitscostsifit found
awaytoproduce itsoutput usingfewerassets,likelessworking capital. Ifweneedlessworking
capital,wecanusethefundsfreeduptobuybackourdebtandequity securitiesinamixthatjustmatches
ourtargetcapitalstructure. Our after-tax savings would
betheWACCbasedonourtargetcapitalstructure multiplied bythetotalvalueofthesecuritiesthat
arenolongeroutstanding.
Forthesereasons,anytimeweareconsidering aproject that requiresexpenditures, comparing
thereturn onthoseexpenditures totheWACC istheappropriate wayto determine whether
undertakingthat projectwillincreasethevalueofthefirm.This istheessenceofthecapitalbudgeting
decision. Becauseafirm'sWACCreflectstheaverage riskoftheprojects
thatmakeupthefirm,itisnotappropriate forevaluating allnew projects. Itshould beadjusted
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upward forprojectswithgreater-than-averageriskand downward forprojectswithless-than-
averagerisk.
Theweights inthecalculation ofafirm'sWACCaretheproportionsofeachsourceof capital
inafirm'scapitalstructure.
Calculating aCompany'sWeighted AverageCostofCapital
TheWACC isgivenby:
where:
wd= percentage ofdebtinthecapitalstructure
wps= percentage ofpreferred stockinthecapitalstructure
wce= percentage ofcommon stockinthecapitalstructure
Example: Computing WACC
Suppose Dexter, Inc.’s target capital structure is as follows:
Wd = 0.45, wps = 0.05, and wce = 0.50
Its before-tax cost of debt is 8%, its cost of equity is 10%, its cost of prefered stock is 8.4 %,
and its marginal tax rate is 40%. Calculate Dexter’s WACC?
Answer:
Dexter’s WACC will be:
WACC = (wd)(kd)(1 - t) + (wps)(kps) + (wce)(kce)
WACC = (0.45)(0.08)(0.6) + (0.05)(0.084) + (0.50)(0.12) = 0.0858 8.6%
Theweightsinthecalculation of WACC should bebasedonthefirm'starget capital structure;
that is, theproportions (basedonmarket values)ofdebt, preferred stock, andequitythat
thefirmexpectstoachieveovertime. Intheabsenceofanyexplicit information about
afirm'starget capitalstructure fromthefirmitself,ananalystmay simplyusethefirm'scurrent
capitalstructure (basedonmarket values)asthebestindication ofitstargetcapitalstructure.
Iftherehasbeenanoticeable trend inthefirm'scapitalstructure, theanalystmaywant
toincorporate thistrend intohisestimate ofthe firm'starget capitalstructure.
Forexample,ifafirmhasbeenreducing itsproportion of debtfinancing
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eachyearfortwoorthreeyears,theanalystmaywishtouseaweighton debtthat islowerthan
thefirm'scurrent weightondebtinconstructing thefirm'starget capitalstructure.
Alternatively, ananalystmaywishtousetheindustry averagecapitalstructure asthe
targetcapitalstructure forafirmunder analysis.
Example: Determiningtarget capital structureweights
The marketvaluesofafirm'scapitalareasfollows:
• Debt outstanding: $8million
• Preferredstockoutstanding: $2million
• Common stockoutstanding: $10million
• Totalcapital: $20million
What isthefirm'starget capitalstructure basedonitsexistingcapitalstructure?
Acompany increasesitsvalueandcreateswealth foritsshareholdersbyearningmoreon its
investment inassetsthan is required bythosewhoprovidethecapitalforthefirm.Afirm'sWACC
mayincreaseaslarger amountsofcapitalare raised.Thus,itsmarginal
costofcapital,thecostofraisingadditionalcapital,canincreaseaslargeramountsare
investedinnewprojects.Thisisillustrated bytheupward-slopingmarginalcostof capital curvein
Figure1. Given theexpected returns (IRRs)onpotentialprojects,we canorder
theexpendituresonadditionalprojectsfromhighest to lowest IRR.Thiswillallowustoconstruct a
downward sloping investment opportunity schedule, such as that shown in Figure 1. PTIT
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Figure 1: The Optimal Capital Budget
The intersectionoftheinvestmentopportunityschedulewith themarginal costof
capitalcurveidentifiestheamount oftheoptimalcapital budget. The intuitionhere isthat
thefirmshould undertakeallthoseprojectswithIRRsgreaterthan thecostof funds,
thesamecriteriondeveloped inthecapitalbudgetingtopicreview.Thiswill
maximizethevaluecreated.Atthesametime,noprojectswith IRRslessthan themarginal
costoftheadditionalcapitalrequiredtofundthem should
beundertaken,astheywillerodethevaluecreatedbythefirm.
One cautionarynoteregarding thesimplelogicbehind Figure1 isinorder.Allprojects
donothavethesamerisk.TheWACC istheappropriatediscountrateforprojects that
haveapproximatelythesamelevelofriskasthefirm'sexistingprojects.This isbecause
thecomponentcostsofcapitalusedtocalculatethefirm'sWACC arebasedonthe
existingleveloffirmrisk.Toevaluateaproject withgreaterthan
(thefirm's)averagerisk,adiscountrategreaterthan thefirm'sexistingWACC should
beused.Projectswithbelow-averageriskshould beevaluated usingadiscountratelessthan
thefirm's WACC.
Anadditionalissuetoconsider whenusingafirm's WACC (marginal costofcapital) to
evaluateaspecificproject isthat thereisanimplicitassumptionthat thecapitalstructure
ofthefirmwillremain atthetargetcapitalstructureoverthelifeoftheproject.
Thesecomplexities aside,wecanstillconclude that theNPVs ofpotentialprojects of firm-
averageriskshould becalculated usingthemarginal costofcapitalforthefirm. Projectsforwhich
Project IRR
Cost of
Capital (%)
Investment
Opportunity
Schedule
New Capital
Raised/Invested
($)
Optimal
Capital
Budget
Marginal
Cost of
Capital
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thepresent valueoftheafter-tax cashinflowsisgreaterthan the presentvalueoftheafter-tax
cashoutflowsshould beundertakenbythefirm.
Theafter-taxcostofdebt, kd(l-t),isusedincomputingtheWACC. Itisthe
interestrateatwhichfirmscanissuenewdebt (kd)netofthetaxsavingsfromthetax
deductibilityofinterest, kd(t):
after-taxcostofdebt= interest rate- taxsavings=kd- kd(t) =kd(l - t)
after-taxcostofdebt=kd(l - t)
IfamarketYTMisnotavailablebecausethefirm'sdebtisnotpublicly traded,
theanalystmayusetherating andmaturity ofthefirm'sexistingdebttoestimate thebefore•
taxcostofdebt. If,forexample,thefirm'sdebtcarriesasingle-Arating andhasan averagematurity
of15years,theanalystcanusetheyieldcurveforsingle-Arateddebttodetermine thecurrent market
ratefordebtwith a15-yearmaturity.This approachisanexampleofmatrix pricing orvaluingabond
basedontheyieldsofcomparable bonds.
Ifanycharacteristics ofthefirm'santicipated debtwould affecttheyield(e.g.,covenants
orseniority), theanalystshould maketheappropriate adjustment tohisestimatedbefore-tax
costofdebt.Forfirmsthatprimarily employfloating-
rate debt,theanalyst should estimate thelonger-term costofthefirm'sdebt usingthecurrent
yieldcurve (termstructure) fordebtoftheappropriate rating category.
The costofpreferred stock (kp) is:
kps=Dps/P
where:
Dps = preferred dividends
P = market priceofpreferred
Example: Cost of preferred stock
Suppose Dexter, Inc., has preferred stock that pays an $8 dividend per share and sells
for $100 per share. What is Dexter’s cost of preferred stock?
Answer:
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kps = Dps / P
kps = $8 / $100 = 0.08 = 8%
Note that the equation kps = Dps / P is just a rearrangement of the preferred stock
valuation model P = Dps / kps, where P is the market price.
The opportunitycostofequity capital (kce)istherequired rateofreturn onthefirm's common
stock.The rationale hereisthat thefirmcouldavoidpartofthecostof common stockoutstanding
byusingretained earnings tobuybacksharesofitsown stock.The costof(i.e.,therequired return
on)common equitycanbeestimated using oneofthefollowingthreeapproaches:
1. Thecapital assetpricing modelapproach.
StepI: Estimate therisk-freerate,RFR.Yieldsondefaultrisk-freedebtsuchas
U.S.Treasurynotesareusuallyused.The mostappropriate maturity to chooseisonethat
isclosetotheusefullifeoftheproject.
Step2:Estimate thestock'sbeta,(3.This isthestock'sriskmeasure.
Step3: Estimate theexpected rateofreturn onthemarket, E(Rmkt).
Step4: Usethecapitalassetpricing model (CAPM) equation toestimate the required
rateofreturn:
Example: Using CAPM to estimate kce
Suppose RFR = 6%, Rmkt 11%, and Dexter has a beta of 1.1. Estimate Dexter’s cost
of equity.
Answer:
The required rate of return for Dexter’s stock is:
kce = 6% + 1.1(11%—6%) = 11.5%
1. The dividend discount model approach. Ifdividends areexpectedtogrowata constant
rate,g,thenthecurrent valueofthestockisgivenbythedividend growth model:
where:
D1= nextyear'sdividend
kce = required rateofreturn oncommon equity
g = firm'sexpectedconstant growth rate
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Rearranging the terms, you can solve for kce:
Inorder touse kce = D1/P0 +g,youhaveto estimate theexpectedgrowth rate,g.This
canbedoneby:
Usingthegrowth rateasprojected bysecurityanalysts.
Usingthefollowingequation toestimate afirm'ssustainable growth rate:
g=(retention rate)(return onequity) =(1- payout rate)(ROE)
The difficultywith thismodel isestimating thefirm'sfuture growth rate.
Example: Estimating using the dividend discount model
Suppose Dexter’s stock sells for $21, next year’s dividend is expected to be $1, Dexter’s
expected ROE is 12%, and Dexter is expected to pay out 40% of its earnings. What is
Dexter’s cost of equity?
Answer:
g = (ROE)(retention race)
g = (0.12)(1 - 0.4) = 0.072 = 7.2%
kce = (1 / 21) + 0.072 = 0.12 or 12%
Aproject's betaisameasureofitssystematic ormarket risk.Justaswecanuseafirm's betatoestimate
itsrequired return onequity,wecanuseaproject's betatoadjustfor
differencesbetweenaspecificproject's riskandtheaverageriskofafirm'sprojects.
Becauseaspecificproject isnotrepresented byapublicly traded security,wetypically cannot
estimate aproject's betadirectly.Oneprocessthat canbeusedisbasedonthe equitybetaofapublicly
traded firmthat isengagedinabusinesssimilarto,andwith risksimilarto,theproject under
consideration. This isreferredtoasthepure-play method
becausewebeginwiththebetaofacompany orgroupofcompanies that are
purelyengagedinabusinesssimilartothat oftheproject andaretherefore comparable totheproject.
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Thus, usingthebetaofaconglomerate that isengagedinthesame businessastheproject would
beinappropriate becauseitsbetadepends onitsmany different linesofbusiness.
The betaofafirmisafunction notonlyofthebusinessrisksofitsprojects (linesof
business)butalsoofitsfinancialstructure. Foragivensetofprojects, thegreaterafirm's
relianceondebtfinancing, thegreateritsequitybeta. Forthisreason,wemust adjust the pure-play
betafromacomparable company (orgroup ofcompanies) forthecompany's
leverage(unleverit)andthenadjust it(re-leverit)basedonthefinancialstructure ofthe company
evaluating theproject. Wecanthen usethisequitybetatocalculate thecostof
equitytobeusedinevaluating theproject.
Togettheassetbetaforapublicly traded firm,weusethefollowingformula:
where:
D/E = comparable company's debt-to-equity ratio and tis its marginal tax rate
Togettheequitybetafortheproject, weusethesubject firm'staxrateanddebt-to-equity ratio:
The followingexampleillustrates thistechnique.
Example: Cost of capital for a project
Acme, Inc., is considering a project in the food distribution business. It has a D/E
ratio of 2, a marginal tax rate of 40%, and its debt currently has a yield of 14%.
Balfor, a publicly traded firm that operates only in the food distribution business, has
a D/E ratio of 1.5, a marginal tax rate of 30%, and an equity beta of 0.9. The risk-free
rate is 5%, and the expected return on the market portfolio is 12%. Calculate Balfor’s
asset beta, the project’s equity beta, and the appropriate WACC to use in evaluating
the project.
Answer:
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Balfor’s asset beta:
Equity beta for the project:
= 0.439[1 + (1- 0.4)(2)] = 0.966
Project cost of equity = 5% + 0.966(12% - 5%) = 11.762%
To get the weights of debt and equity, use the D/E ratio and give equity a value of 1.
Here, D/E = 2, so if E = 1, D = 2. The weight for debt, D/(D + E), is 2/(2 + 1) = 2/3,
and the weight for equity, E/(D + E), is 1/(2 + 1) = 1/3. The appropriate WACC for
the project is therefore:
While themethod istheoreticallycorrect, thereareseveralchallenging issuesinvolvedin
estimatingthebetaofthecomparable (orany)company's equity:
Betaisestimated usinghistorical returns data.Theestimate issensitivetothelength
oftimeusedandthefrequency (daily,weekly,etc.)ofthedata.The estimate isaffectedbywhich
indexischosentorepresentthemarket return. Betasarebelievedtoreverttoward 1 over time,
and the estimate may need to be adjusted for this tendency. Estimates ofbetaforsmall-
capitalization firmsmayneedtobeadjustedupwardtoreflectriskinherentinsmallfirmsthat
isnotcapturedbytheusualestimation methods.
UsingtheCAPM toestimate thecostofequityisproblematicindeveloping countries
becausebetadoesnotadequatelycapture countryrisk.Toreflecttheincreased risk
associatedwithinvesting inadeveloping country, acountry riskpremiumisadded to themarket
riskpremiumwhen usingtheCAPM.
Thegeneralriskofthedeveloping countryisreflectedinitssovereignyield spread.
Thisisthedifferenceinyieldsbetween thedeveloping country's governmentbonds
(denominatedinthedeveloped market's currency) andTreasurybonds ofasimilar
maturity.Toestimate anequity riskpremiumforthecountry, adjust thesovereignyield
spreadbytheratioofvolatility between thecountry's equity market anditsgovernment bond
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market (forbonds denominatedinthedeveloped market'scurrency). Amore
volatileequitymarket increasesthecountryriskpremium,other thingsequal.
The revisedCAPM equationisstated as:
where:
CRP= countryriskpremium
The countryriskpremiumcanbecalculated as:
where:
sovereignyieldspread=differencebetweentheyields ofgovernmentbondsinthe
developingcountryandTreasurybondsofsimilarmaturities
Example: Country risk premium
Robert Rodriguez, an analyst with Omni Corporation, is estimating the cost of equity
for a project Omni is starting in Venezuela. Rodriguez has compiled the following
information for his analysis:
Project beta =1.25.
Expected market return = 10.4%.
Risk-free rate = 4.2%.
Country risk premium = 5.53%.
Calculate the cost of equity for Omni’s Venezuelan project.
Answer
kce = RF + β⦋E(RMKT)-RF +CRP⦌
= 0.042 + 1.25[0.104 - 0.042 + 0.0553]
= 0.042 + 1.25[0.1173]
= 0.1886, or 18.86%
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1.3 Measures of leverage
Leverage,inthesenseweuseithere,referstotheamount offixedcostsafirmhas.These
fixedcostsmaybefixedoperating expenses,suchasbuilding orequipmentleases,orfixedfinancing
costs,suchasinterest payments ondebt. Greaterleverageleadstogreatervariability
ofthefirm'safter-taxoperating earnings andnetincome.Agivenchangein
saleswillleadtoagreaterchangeinoperating earningswhenthefirmemploysoperating
leverage;agivenchangeinoperating earningswillleadtoagreaterchangeinnetincome
whenthefirmemploysfinancialleverage.
Business riskreferstotheriskassociatedwith afirm'soperating income andistheresult
ofuncertainty about afirm'srevenuesandtheexpenditures necessarytoproduce those
revenues.Businessriskisthecombinationofsalesriskandoperating risk.
Salesriskistheuncertaintyabout thefirm'ssales.Operatingriskreferstotheadditional
uncertaintyabout operating earningscaused byfixedoperating
costs.Thegreatertheproportionoffixedcoststovariablecosts, thegreaterafirm'soperating risk.
Financial riskreferstotheadditional riskthat thefirm'scommon stockholders must
bearwhenafirmusesfixedcost(debt)financing. When acompany financesits operationswith
debt, ittakesonfixedexpensesintheformofinterest payments. The
greatertheproportionofdebtinafirm'scapitalstructure, thegreaterthefirm'sfinancial risk.
1.4 Dividends and Share Repurchases
Cashdividends,asthenameimplies, arepayments madetoshareholders incash.They
comeinthreeforms:
1. Regular dividends occurwhenacompany paysoutaportion ofprofitsona consistent
schedule (e.g.,quarterly). Along-term recordofstableorincreasing dividends
iswidelyviewedbyinvestorsasasignofacompany's financialstability.
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2. Specialdividends areusedwhenfavorablecircumstances allowthefirmtomakea one-time
cashpayment toshareholders, inadditiontoanyregulardividends the
firmpays.Manycyclicalfirms(e.g.,automakers) willuseaspecialdividend to shareprofitswith
shareholders whentimesaregoodbutmaintaintheflexibilityto
conservecashwhenprofitsaredown.Other namesforspecialdividends include
extradividendsandirregulardividends.
3. Liquidatingdividends occurwhenacompany goesoutofbusinessanddistributes
theproceeds toshareholders. Fortaxpurposes, aliquidatingdividend istreated asa return
ofcapitalandamounts overtheinvestor'staxbasisaretaxedascapitalgains.
Nomatterwhich formcashdividends take,theirneteffectistotransfer cashfromthe company
toitsshareholders. Thepayment ofacashdividend reducesacompany'sassets
andthemarketvalueofitsequity.This meansthat immediately afteradividend ispaid,
thepriceofthestockshould dropbytheamount ofthedividend. Forexample,ifa
company'sstockpriceis$25pershareandthecompany pays$1pershareasadividend,
thepriceofthestockshould immediately dropto$24persharetoaccount forthelower
assetandequityvaluesofthefirm.
Stockdividends aredividends paidoutinnewsharesofstockrather than
cash.Inthiscase,therewillbemoresharesoutstanding, buteachonewillbeworth less.Stock
dividends arecommonly expressedasapercentage. A20%stockdividend meansevery
shareholder gets20%morestock.On thefirm'sbalancesheet,issuingastockdividend
decreasesretained earnings andincreasescontributed capitalbythesameamount. Total
shareholders'equityremainsunchanged.
Example: Stock dividend
Dwight Craver owns loo shares of Carson Construction Company at a current price
of $30 per share. Carson has 1,000,000 shares of stock outstanding, and its earnings
per share (EPS) for the last year were $1.50. Carson declares a 20% stock dividend to
all shareholders of record as of June 30.
What is the effect of the stock dividend on the market price of the stock, and what is the
impact of the dividend on Craver’s ownership position in the company?
Answer
Impact of 20% Stock Dividend on Shareholders
Before Stock Dividend After Stock Dividend
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Shares outstanding 1,000,000
1,000,000 x 1.20 = 1,200,000
Earnings per share $1.50 $1.50 /1.20 = $1.25
Stock price $30.00 $30.00 / 1.20 $25.00
Total market value 1,000,000 x $30 = $30,000,000 1,200,000 x $25 = $30,000,000
Shares owned 100 100 x 1.20 = 120
Ownership value 100 x $30 = $3,000 120 x $25 = $3,000
Ownership stake 100 / 1,000,000 = 0.01% 120 / 1,200,000 = 0.01%
The effect of the stock dividend is to increase the number of shares outstanding by
20%. However, because company earnings stay the same, EPS decline and the price of the
firm’s stock drops from $30 to $25. Craver’s receipt of more shares is exactly offset by the
drop in stock price, and his wealth and ownership position in the company are unchanged.
Stocksplits divideeachexistingshareintomultiple shares,thuscreating moreshares. There
arenowmoreshares,butthepriceofeachsharewilldropcorrespondinglyto thenumber
ofsharescreated,sothereisnochangeintheowner'swealth. Splitsareexpressedasaratio. Ina3-for-1
stocksplit,eacholdshareissplitintothreenewshares. Stocksplitsaremorecommon todaythan
stockdividends.
Example: Stock split
Carson Construction Company declares a 3-for-2 stock split. The current stock price
is $30, earnings for last year were $1.50, dividends were $0.60 per share, and there
arc 1 million shares outstanding. What is the impact on Carson’s shares outstanding,
stock price, EPS, dividends per share, dividend yield, PIE, and market value?
Answer:
Impact of a 3-for-2 Stock Split on Shareholders
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Before Stock Split After Stock Split
Shares outstanding 1,000,000 1,000,000 x (3/2) = 1,500,000
Stock price $30.00 $30.00 / (3/2) = $20.00
Earnings per share $1.50 $1.50 / (3/2) = $1.00
Dividends per share $0.60 $0.60 / (3/2) = $0.40
Dividend yield $0.60 / $30.00 = 2.0% $0.40 / $20.00 = 2.0%
P/E ratio $30.00 / $1.50 = 20 $20.00 / $1.00 = 20
Total market value 1,000,000 x $30 = $30,000,000 1,500,000 x $20 = $30,000,000
The number of shares outstanding increases, but the stock price, EPS, and dividends
per share decrease by a proportional amount. The dividend yield, PIE ratio, and total
market value of the firm remain the same. As in our prior example, the effect on the
firm’s shareholders also remains the same. The number of shares would increase
(100 x 3 / 2 = 150), but the ownership value and stake are unchanged.
The bottom lineforstocksplitsandstockdividends isthat theyincreasethetotal number
ofsharesoutstanding, butbecausethestockpriceandearnings pershareare adjusted
proportionally, thevalueofashareholder's total sharesisunchanged.
Somefirmsusestocksplitsandstockdividends tokeepstockpriceswithin aperceived optimal
trading rangeof$20to$80pershare.What doesacademic researchhavetosay about this?
Stockpricestend toriseafterasplitorstockdividend.
Priceincreasesappeartooccurbecausestocksplitsaretakenasapositivesignalfrom
management about future earnings.
Ifareport ofgoodearnings doesnotfollowastocksplit,pricestend torevertto theiroriginal
(split-adjusted) levels.
Stocksplitsanddividends tend toreduceliquidity duetohigher percentage brokerage
feesonlower-priced stocks.
The conclusion isthat stocksplitsandstockdividends createmoresharesbut don't
increaseshareholder value.
Reversestocksplits are theopposite ofstock splits.Afterareversesplit,therearefewer shares
outstanding butahigher stock price. Becausethesefactors offsetoneanother, shareholder wealth
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is unchanged. Thelogic behind areverse stock splitis that the perceived optimalstock
pricerangeis$20to$80per share, andmostinvestorsconsider astock with apricelessthan
$5persharelessthan investment grade.Exchangesmay imposeaminimumstock priceanddelist
thosethat fallbelowthatprice.Acompany in financialdistresswhosestock hasfallendramatically
maydeclare areversestock splitto increasethestock price.
EffectsonFinancial Ratios
Paying a cash dividend decreases assets (cash) and shareholders' equity (retained
earnings). Other things equal, the decrease in cash will decrease a company's liquidity
ratios and increase its debt-to-assets ratio, while the decrease in shareholders' equity will
increase its debt-to-equity ratio.
Stock dividends, stock splits, and reverse stock splits have no effect on a company's
leverage ratios or liquidity ratios. These transactions do not change the value of a
company's assets or shareholders' equity; they merely change the number of equity
shares.
An example of a typical dividend payment schedule is shown in Figure 1.
Figure 1: Dividend Payment Chronology
Declaration date Ex-dividend date Holder-of-record
date
Payment date
August 25 September 15 September 17 September 30
Declarationdate.Thedatetheboardofdirectorsapprovespayment ofthedividend.
Ex-dividenddate.Thefirstdayashare ofstock tradeswithoutthedividend.Theex-dividend date
isalso thecutoffdateforreceiving thedividend andoccurstwo business daysbeforetheholder-of-
record date.Ifyoubuytheshare onorafterthe ex-dividend date,youwillnotreceive thedividend.
Holder-of-record date. The date on which the shareholders of record are designated to
receive the dividend.
Payment date. The date the dividend checks are mailed out or when the payment is
electronically transferred to shareholder accounts.
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Stocks are traded ex-dividend on and after the ex-dividend date, so stock prices should
fall by the amount of the dividend on the ex-dividend date. Because of taxes, however,
the drop in price may be closer to the after-tax value of dividends.
A share repurchase is a transaction in which a company buys back shares of its own
common stock. Companies use three methods to repurchase shares:
1. Buyinthe open market. Companies mayrepurchase stockintheopenmarket attheprevailing
market price.Asharerepurchase isauthorized bytheboardof directors foracertain
numberofshares.Buyingintheopenmarket givesthe company theflexibilityto choosethetiming
ofthetransaction.
2. Buyafixednumberofsharesatafixedprice. Acompany mayrepurchase stock bymaking
atender offerto repurchase aspecificnumberofsharesatapricethatisusuallyatapremium
tothecurrent market price.Shareholders maytender their sharesaccording
tothetermsoftheoffer.Ifshareholders trytotender moreshares than thetotalrepurchase,
thecompany willtypicallybuybackaprorataamount fromeachshareholder.The company
mayselectatender offerpriceoruseaDutch auction (described intheEconomics
topicreviewforDemandandSupplyAnalysis: Introduction)todetermine
thelowestpriceatwhich itcanrepurchase thenumber ofsharesdesired.
3. Repurchase bydirect negotiation.Companies maynegotiate directlywith alarge
shareholder tobuybackablockofshares,usuallyatapremium tothemarket price. Acompany
mayengageindirectnegotiation inordertokeepalargeblockofshares fromcoming intothemarket
andreducing thestockpriceortorepurchase shares fromapotentialacquirer afteranunsuccessful
takeoverattempt.Ifthefirmpays morethan market
valuefortheshares,theresultisanincreaseinwealthforthesellerandanequaldecreaseinwealthforre
maining firmshareholders.
Asharerepurchase willreducethenumberofsharesoutstanding,whichwilltend to
increaseearningspershare.On theotherhand, purchasing shareswith company funds
willreduceinterest income andearnings, andpurchasing shareswithborrowed funds
incursinterest costs,whichwillreduceearnings directlybytheafter-tax costoftheborrowed
funds.The relation ofthepercentage decreaseinearnings andthepercentage
decreaseinthenumber ofsharesusedtocalculateEPSwilldetermine whether theeffect
ofastockrepurchase onEPSwillbepositiveornegative.
Beforewelookatthecalculations involvedindetermining theeffectofashare repurchase
onEPS,consider thefollowing intuitive approach. The
earningsyieldforashareofstockissimplyEPSdivided bytheshareprice.A$20stockwith EPSof$1
hasanearningsyieldof5%.Iftheafter-taxyieldoncompany funds usedtorepurchase
shares,ortheafter-tax costofborrowed funds usedtorepurchase
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shares,isgreaterthan5%,EPSwillfallasaresultoftherepurchase. Iftheafter-taxyieldoncompany
fundsusedtorepurchase shares,ortheafter-tax costofborrowed funds usedtorepurchase
shares,islessthan 5%,EPSwillriseasaresultoftherepurchase.
Example: Share repurchase when after-tax cost of debt is less than earnings yield
Spencer Pharmaceuticals, Inc., (SPI) plans to borrow $30 million that it will use to
repurchase shares. SPI’s chief financial officer has compiled the following information:
Share price at the time of buyback = $50.
Shares outstanding before buyback = 20,000,000.
EPS before buyback = $5.00.
Earnings yield = $5.00 / $50 = 10%.
After-tax cost of borrowing = 8%.
Planned buyback = 600,000 shares.
Calculate the EPS after the buyback.
Answer:
total earnings = $5.00 x 20,000,000 = $100,000,000
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Because the 8% after-tax cost of borrowing is less than the 10% earnings yield (E/P)
of the shares, the share repurchase will increase the company’s EPS.
The conclusion isthat asharerepurchase usingborrowed fundswillincreaseEPSifthe after-
taxcostofdebtusedtobuybacksharesislessthan theearningsyieldoftheshares beforetherepurchase.
ItwilldecreaseEPSifthecostofdebtisgreaterthan theearnings
yield,anditwillnotchangeEPSifthetwoareequal.
Sharerepurchases mayalsohaveanimpact onthebookvalueofashareofstock.
Example: Effect of a share repurchase on book value per share
The share prices of Blue, Inc., and Red Company arc both $25 per share, and each
company has 20 million shares outstanding. Both companies have announced a
$10 million stock buyback. Blue, Inc., has a book value of $300 million, while Red
Company has a book value of $700 million.
Calculate the book value per share (BVPS) of each company after the share
repurchase.
Answer:
Share buyback for both companies = $10 million / $25 per share = 400,000 shares.
Remaining shares for both companies = 20 million - 400,000 = 19.6 million.
Blue, Inc.’s current BVPS = $300 million / 20 million = $15.
The market price per share of $25 is greater than the BVPS of $15.
Book value after repurchase: $300 million - $10 million = $290 million
BVPS = $290 million /19.6 million = $14.80
BVPS decreased by $0.20
Red Company’s current BVPS = $700 million / 20 million = $35.
The market price per share of $25 is less than the BVPS of $35.
Book value after repurchase: $700 million — $10 million = $690 million
BVPS $690 million / 19.6 million = $35.20
BVPS increased by $0.20
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The conclusion isthat BVPSwilldecreaseiftherepurchase priceisgreaterthan the original
BVPSandincreaseiftherepurchase priceislessthan theoriginal BVPS.
Becausesharesarerepurchased usingacompany's owncash,asharerepurchase can beconsidered
analternative toacashdividend asawayofdistributing earnings to shareholders.
Assuming thetaxtreatment ofthetwoalternatives isthesame,asharerepurchase has
thesameimpact onshareholder wealthasacashdividend payment ofanequalamount.
Example: Impact ofsharerepurchase andcashdividend ofequalamounts
Spencer Pharmaceuticals, Inc., (SPI) has 20,000,000 shares outstanding with a current market
value of $50 per share. SPI made $100 million in profits for the recent quarter, and because
only 70% of these profits will be reinvested back into the company, SPI’s Board of Directors
is considering two alternatives for distributing the remaining 30% to shareholders:
• Pay a cash dividend of $30,000,000 / 20,000,000 shares = $1.50 per share.
• Repurchase $30,000,000 worth of common stock.
Assume that dividends are received when the shares go ex-dividend, the stock can be
repurchased at the market price of $50 per share, and there arc no differences in tax
treatment between the two alternatives. How would the wealth of an SPI shareholder
be affected by the board’s decision on the method of distribution?
Answer:
(1) Cash dividend
After the shares go ex-dividend, a shareholder of a single share would have $1.50 in
cash and a share worth $50 - $1.50 = $48.50.
The ex-dividcnd value of $48.50 can also be calculated as the market value of equity
after the distribution of the $30 million, divided by the number of shares outstanding
after the dividend payment:
total wealth from the ownership of one share $48.50 + $1.50 = $50
(2) Share repurchase
With $30,000,000, SPI could repurchase $30,000,000 / $50 = 600,000 shares of
common stock. The share price after the rcpurchasc is calculated as the market value
of equity after the $30,000,000 repurchase divided by the shares outstanding after the
repurchase:
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Chủ đề 1: Corporate Finance.
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1.5 Working capital management
Acompany's primarysourcesofliquidityarethesourcesofcashitusesinitsnormal day-to-day
operations. Thecompany's cashbalancesresultfromsellinggoodsand services,collecting
receivables,andgenerating cashfromother sourcessuchasshort-terminvestments.
Typicalsourcesofshort-termfundinginclude tradecreditfromvendors
andlinesofcreditfrombanks.Effectivecashflowmanagementofafirm's collections andpayments
canalsobeasourceofliquidityforacompany.
Secondary sourcesofliquidityinclude liquidatingshort-termorlong-lived assets, negotiating
debtagreements (i.e.,renegotiating), orfilingforbankruptcyand reorganizing
thecompany.While usingitsprimary sourcesofliquidity isunlikely to changethecompany's
normal operations, resorting tosecondary sourcesofliquidity
suchasthesecanchangethecompany'sfinancialstructureandoperations significantly
andmayindicate that itsfinancialposition isdeteriorating.
FactorsThat Influence aCompany'sLiquidityPosition
Ingeneral,acompany's liquidityposition improvesifitcangetcashtoflowinmore
quicklyandflowoutmoreslowly.Factorsthatweakenacompany's liquidityposition are
calleddragsandpullsonliquidity.
Drags onliquiditydelayorreducecashinflows,orincreaseborrowing costs.Examples include
uncollected receivablesandbaddebts, obsoleteinventory (takeslongertosell
andcanrequiresharppricediscounts), andtight short-term creditduetoeconomic conditions.
Pullsonliquidity acceleratecashoutflows.Examplesinclude payingvendors sooner than
isoptimal andchangesincredittermsthat requirerepayment ofoutstanding balances.
Somecompanies tend tohavechronically weakliquiditypositions, oftenduetospecific
factorsthat affectthecompany oritsindustry.These companies typicallyneedtoborrow
againsttheirlong-lived assetstoacquireworking capital.
1.6 Corporate Governance
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Chủ đề 1: Corporate Finance.
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Corporate governance isthesetofinternal controls, processes, andprocedures by
whichfirmsaremanaged.Itdefinestheappropriate rights, roles,andresponsibilitiesof
management, theboardofdirectors, andshareholderswithin anorganization.Itisthe
firm'schecksandbalances.Good corporate governancepractices seektoensurethat:
The boardofdirectors protects shareholder interests.
The firmactslawfullyandethicallyindealingswith shareholders.
The rightsofshareholders areprotected andshareholders haveavoiceingovernance. The
boardactsindependentlyfrommanagement.
Properprocedures andcontrols covermanagement's day-to-day operations.
The firm'sfinancial, operating, andgovernance activitiesarereported toshareholders
inafair,accurate, andtimelymanner.
Thedutyoftheboardistoactintheshareholders' long-term interests. Aneffective board
needstohavetheindependence, experience, andresourcesnecessarytoperform
thisduty.Toproperly protect theirlong-term interests asshareholders, investorsshould consider
whether thefollowingstatements holdtrue:
Amajority oftheboardofdirectors iscomprised ofindependentmembers (not
management).
Theboardmeetsregularlyoutside thepresenceofmanagement.
Thechairman oftheboardisalsotheCEO oraformer CEO ofthefirm.This mayimpair
theabilityandwillingness ofindependentboardmembers toexpress opinions contrary
tothoseofmanagement.
Independentboardmembers haveaprimary orleadingboardmember incaseswhere
thechairman isnotindependent.
Boardmembers arecloselyalignedwithafirmsupplier, customer, share-option plan,
orpension adviser.Canboardmembers recusethemselvesonanypotentialareasof
conflict?
Anindependentboardisless likelytomakedecisionsthat unfairly orimproperly benefit
management andthosewhohaveinfluence overmanagement.
There isoften aneedforspecific,specialized,independentadviceonvariousfirmissues
andrisks,including compensation;mergersandacquisitions; legal,regulatory, and
financialmatters; andissuesrelating tothefirm'sreputation. Atrulyindependentboard
willhavetheabilitytohireexternalconsultants withoutmanagement approval.This
enablestheboardtoreceivespecializedadviceontechnical issuesandprovidestheboard with
independentadvicethat isnotinfluenced bymanagement interests.
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Chủ đề 1: Corporate Finance.
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Chủ đề 2: Market Organization.
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2 Chủ đề 2: Market Organization
2.1 Market organization and structure
Thethreemainfunctions ofthefinancialsystemareto:
1. Allowentities tosaveandborrowmoney,raiseequitycapital,manage risks,trade
assetscurrently orinthefuture,andtradebasedontheirestimates ofassetvalues.
2. Determine thereturns (i.e.,interest rates)that equate thetotalsupplyofsavings with
thetotaldemand forborrowing.
3. Allocatecapitaltoitsmostefficientuses.
Thefinancialsystemallowsthetransfer ofassetsandrisksfromoneentity toanother as
wellasacrosstime.Entities whoutilizethefinancialsysteminclude individuals, firms,
governments, charities, andothers.
Achievement ofPurposesintheFinancial System
Thefinancialsystemallowsentities tosave,borrow,issueequitycapital, managerisks,
exchangeassets,andtoutilizeinformation.
Thefinancialsystemisbestatfulfillingtheseroleswhenthemarkets areliquid, transactions
costsarelow,informationisreadily available,andwhenregulation ensurestheexecution
ofcontracts.
Savings.Individuals willsave(e.g.,forretirement) andexpectareturn that compensates
themforriskandtheuseoftheirmoney.Firmssaveaportion oftheirsalestofund future expenditures.
Vehiclesusedforsavinginclude stocks,bonds, certificatesof deposit, realassets,andother assets.
Borrowing.Individuals mayborrow inordertobuyahouse, fundacollegeeducation,
orforotherpurposes. Afirmmayborrow inordertofinancecapitalexpenditures and forother
activities. Governments mayissuedebttofund theirexpenditures. Lenders canrequirecollateral
toprotect them intheeventofborrower defaults, takeanequity position, orinvestigatethecredit
riskoftheborrower.
Issuingequity.Anothermethod ofraisingcapitalistoissueequity,wherethecapital
providerswillshareinanyfuture profits. Investment bankshelpwith issuance,analysts
valuetheequity,andregulators andaccountants encourage thedissemination of information.
Riskmanagement.Entities facerisksfromchanging interest rates,currencyvalues, commodities
values,anddefaults ondebt, amongother things. Forexample,afirm that owesaforeigncurrency
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Chủ đề 2: Market Organization.
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in90dayscanlockinthepriceofthisforeigncurrency indomestic currency unitsbyentering
intoaforward contract. Future deliveryofthe foreigncurrency isguaranteed atadomestic-
currencypricesetatinception ofthe contract.Inthistransaction,
thefirmwouldbereferredtoasahedger.This hedging allowsthefirmtoenteramarket that itwould
otherwise bereluctanttoenterbyreducing theriskofthetransaction. Hedging instruments
areavailablefromexchanges, investment banks,insurance firms,andother institutions.
Exchangingassets.The financialsystemalsoallowsentities toexchangeassets.For
example,Proctor andGamblemaysellsoapinEurope buthavecostsdenominatedin
U.S.dollars.Proctor andGamble canexchangetheireurosfromsoapsalesfordollarsin thecurrency
markets.
Utilizinginformation. Investorswith information expecttoearnareturn onthat information
inadditiontotheir usualreturn. Investorswhocanidentify assetsthat are currently undervalued
orovervaluedinthemarket canearnextrareturns frominvesting
basedontheirinformation(whentheiranalysisiscorrect).
Return Determination
The financialsystemalsoprovidesamechanism todetermine therateofreturn
thatequatestheamount ofborrowing withtheamount oflending
(saving)inaneconomy.Lowratesofreturn increaseborrowing butreducesaving(increasecurrent
consumption). High ratesofreturn increasesavingbutreduceborrowing. The
equilibriuminterest rateistherateatwhichtheamount individuals, businesses,and governments
desiretoborrow isequaltotheamount that individuals, businesses,and governments
desiretolend.Equilibrium ratesfordifferent typesofborrowing
andlendingwilldifferduetodifferencesinrisk,liquidity, andmaturity.
Allocation ofCapital
With limited availability ofcapital,oneofthemostimportantfunctions ofafinancial
systemistoallocatecapitaltoitsmostefficientuses.Investorsweightheexpected risks andreturns
ofdifferent investments todetermine theirmostpreferred investments.As
longasinvestorsarewellinformed regarding riskandreturn andmarkets function well,
thisresultsinanallocation tocapitaltoitsmostvaluableuses.
Financial assetsinclude securities (stocksandbonds), derivativecontracts, and currencies.
Realassetsinclude realestate,equipment, commodities,andotherphysical assets.
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Financial securitiescanbeclassifiedasdebtorequity.Debt securities arepromisesto
repayborrowed funds.Equity securities represent ownership positions.
Public (publicly traded) securities aretraded onexchangesorthroughsecuritiesdealers
andaresubject toregulatory oversight. Securitiesthat arenottraded inpublic markets
arereferredtoasprivate securities.Privatesecuritiesareoftenilliquid andnotsubjectto regulation.
Derivative contractshavevaluesthat depend on(arederivedfrom)thevaluesofother
assets.Financial derivative contractsarebasedonequities, equityindexes,debt, debt
indexes,orother financialcontracts. Physical derivative contractsderivetheirvalues
fromthevaluesofphysicalassetssuchasgold,oil,andwheat.
Markets forimmediate deliveryarereferredtoasspotmarkets. Contracts forthefuture
deliveryofphysicalandfinancialassetsinclude forwards, futures, andoptions. Options provide
thebuyertheright, butnottheobligation, topurchase (orsell)assetsoversome period
oratsomefuture dateatpredeterminedprices.
Theprimarymarket isthemarket fornewlyissuedsecurities. Subsequent sales of
securitiesaresaidtooccurinthesecondary market.
Money markets refertomarketsfordebtsecuritieswithmaturities ofoneyearorless. Capital
markets refertomarkets forlonger-term debtsecuritiesandequitysecurities that
havenospecificmaturitydate.
Traditionalinvestmentmarkets refertothosefordebtandequity.Alternative markets
refertothoseforhedgefunds, commodities,realestate,collectibles, gemstones, leases,
andequipment. Alternative assetsareoftenmoredifficult tovalue,illiquid, require investor
duediligence, andtherefore oftensellatadiscount.
Assetscanbeclassifiedassecurities, currencies, contracts, commodities, andrealassets. Their
characteristics andsubtypesareasfollows.
Securities
Securitiescanbeclassifiedasfixedincome orequitysecurities, andindividual securities
canbecombined inpooled investment vehicles.Corporations andgovernments arethe
mostcommon issuersofindividual securities.The initial saleofasecurityiscalledan
issuewhenthesecurityissoldtothepublic.
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Chủ đề 2: Market Organization.
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Fixedincome securities typicallyrefertodebtsecuritiesthat arepromises torepay borrowed
moneyinthefuture. Short-term fixedincome securitiesgenerallyhavea maturityoflessthan
oneortwoyears;long-term termmaturities arelongerthanfiveto tenyears,andintermediate
termmaturities fallinthemiddle ofthematurityrange.
Although thetermsareusedloosely,bondsaregenerallylongterm,whereasnotes areintermediate
term. Commercialpaperreferstoshort-termdebtissuedbyfirms. Governments
issuebillsandbanksissuecertificatesofdeposit.Inrepurchase agreements, theborrower
sellsahigh-quality assetandhasboth therightandobligation torepurchase it(atahigher
price)inthefuture. Repurchase agreements canbefortermsasshort asoneday.
Convertibledebtisdebtthat aninvestorcanexchangeforaspecifiednumberofequity
sharesoftheissuingfirm.
Equity securities represent ownership inafirmandinclude common stock,preferred
stock,andwarrants.
Commonstockisaresidualclaimonafirm'sassets.Commonstockdividends are
paidonlyafterinterest ispaidtodebtholders anddividends arepaidtopreferred stockholders.
Furthermore, intheeventoffirmliquidation,debtholders and preferred stockholders
havepriority overcommon stockholders andareusuallypaid infullbeforecommon stockholders
receiveanypayment.
Preferred stockisanequitysecuritywithscheduled dividends that
typicallydonotchangeoverthesecurity'slifeandmust bepaidbeforeanydividends oncommon
stockmaybepaid.
Warrantsaresimilartooptions inthat theygivetheholdertherighttobuyafirm's
equityshares(usuallycommon stock)atafixedexercisepriceprior tothewarrant's expiration.
Pooledinvestmentvehicles include mutual funds, depositories, andhedgefunds.The
termreferstostructures that combine thefunds ofmanyinvestorsinaportfolio ofinvestments. The
investor'sownership interests arereferredtoasshares,units,depository
receipts,orlimitedpartnershipinterests.
Mutual funds arepooled investment vehiclesinwhich investorscanpurchase shares,
eitherfromthefund itself(open-end funds) orinthesecondary market (closed-end
funds).
Exchange-traded funds (ETFs)andexchange-traded notes (ETNs) tradelike closed-
end fundsbuthavespecialprovisions allowingconversion intoindividual portfolio
securities, orexchangeofportfolio sharesforETFshares,that keeptheir market
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Chủ đề 2: Market Organization.
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pricesclosetothevalueoftheirproportionalinterest intheoverallportfolio. Thesefunds
aresometimes referredtoasdepositories,withtheirsharesreferredtoas depositoryreceipts.
Asset-backed securities represent aclaimtoaportion ofapooloffinancialassets
suchasmortgages, carloans,orcreditcarddebt.The return fromtheassetsispassed
throughtoinvestors,with different classesofclaims(referredtoastranches)having
different levelsofrisk.
Hedge funds areorganized aslimited partnerships, with theinvestorsasthelimited
partners andthefund manager asthegeneralpartner.Hedgefunds utilizevarious
strategiesandpurchase isusuallyrestricted toinvestorsofsubstantial wealth and
investment knowledge.Hedgefundsoften useleverage.Hedgefund managersare
compensated basedontheamount ofassetsunder management aswellasontheir
investment results.
Currencies
Currencies areissuedbyagovernment's centralbank. Somearereferredtoasreserve currencies,
whicharethoseheldbygovernments andcentral banksworldwide. These include
thedollarandeuroand,secondarily, theBritishpound,Japaneseyen,andSwiss
franc.Inspotcurrency markets, currencies aretraded forimmediate delivery.
Contracts
Contractsareagreements betweentwoparties that requiresomeactioninthefuture,
suchasexchanging anassetforcash.Financial contracts areoftenbasedonsecurities, currencies,
commodities, orsecurityindexes(portfolios). They include futures, forwards, options,
swaps,andinsurance contracts.
Aforward contractisanagreement tobuyorsellanassetinthefuture ataprice
specifiedinthecontractatitsinception. Anagreement topurchase
100ouncesofgold90daysfromnowfor$1,000 perounce isaforward contract. Forward contracts
arenot traded onexchangesorindealermarkets.
Futures contractsaresimilartoforwardcontracts exceptthat theyarestandardized as
toamount,assetcharacteristics, anddeliverytimeandaretraded onanexchange(ina secondary
market) sothat theyareliquid investments.
Inaswapcontract,twopartiesmakepayments that areequivalent tooneassetbeing traded
(swapped)foranother. Inasimpleinterestrateswap,floatingrateinterest
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Chủ đề 2: Market Organization.
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paymentsareexchangedforfixed-ratepayments overmultiple settlement dates.A
currencyswapinvolvesaloaninonecurrency fortheloanofanother currency fora period
oftime.Anequityswapinvolvestheexchangeofthereturn onanequity indexor portfolio
fortheinterest payment onadebtinstrument.
Anoption contractgivesitsownertherighttobuyorsellanassetataspecificexercise
priceatsomespecifiedtimeinthefuture. Acalloption givestheoption buyertheright
(butnottheobligation) tobuyanasset.Aput option givestheoption buyertheright
(butnottheobligation) tosellanasset.
Sellers,orwriters, ofcall(put) options receiveapayment, referredtoastheoption premium,
whentheyselltheoptions butincur theobligation tosell(buy)theassetatthe
specifiedpriceiftheoption ownerchoosestoexerciseit.
Optionsoncurrencies, stocks,stockindexes,futures, swaps,andpreciousmetalsare traded
onexchanges.Customized options contracts arealsosoldbydealersintheover• the-
countermarket.
Aninsurancecontractpaysacashamount ifafuture eventoccurs.Theyareusedto
hedgeagainstunfavorable, unexpected events.Examplesinclude life,liability,and automobile
insurance contracts. Insurance contracts cansometimes betraded toother
partiesandoftenhavetax-advantagedpayouts.
Credit default swapsareaformofinsurance thatmakesapayment ifanissuerdefaults
onitsbonds.They canbeusedbybond investorstohedgedefaultrisk.They canalsobe usedbyparties
thatwillexperiencelossesifanissuerexperiencesfinancial distressandby
otherswhoarespeculating that theissuerwillexperiencemoreorless financial trouble than
iscurrently expected.
Commodities
Commoditiestradeinspot,forward, andfutures markets.They include precious
metals,industrial metals,agricultural products, energyproducts, andcreditsforcarbon
reduction.
Futures andforwardsallowboth hedgersandspeculators toparticipate incommodity
marketswithouthavingtodeliverorstorethephysicalcommodities.
Real Assets
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Chủ đề 2: Market Organization.
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Examplesofrealassetsarerealestate,equipment, andmachinery.Although theyhave
beentraditionally heldbyfirmsfortheiruseinproduction,realassetsareincreasingly
heldbyinstitutionalinvestorsboth directlyandindirectly.
Buyingrealassetsdirectlyoftenprovidesincome, taxadvantages, anddiversification benefits.
However,theyoftenentailsubstantial management costs.Furthermore,
becauseoftheirheterogeneity, theyusuallyrequire theinvestor todosubstantial duediligence
beforeinvesting.They areilliquid becausetheirspecialization mayresultinalimited
poolofinvestorsforaparticular realasset.
Rather thanbuying realassetsdirectly,aninvestormaychoosetobuythem indirectly
throughaninvestment suchasarealestateinvestmenttrust(REIT) ormasterlimited partnership
(MLP).The investorownsaninterest inthesevehicles,which holdtheassets
directly.Indirectownership interests aretypicallymoreliquid than ownership ofthe
assetsthemselves.Another indirect ownership method istobuythestockoffirmsthat
havelargeownership ofrealassets.
Financial intermediariesstandbetween buyersandsellers,facilitating theexchange
ofassets,capital, andrisk.Their servicesallowforgreaterefficiencyandarevitaltoa well-
functioning economy.Financial intermediaries include brokersandexchanges,
dealers,securitizers, depository institutions,insurance companies, arbitrageurs, and
clearinghouses.
Brokers,Dealers,andExchanges
Brokers helptheir clientsbuyandsellsecuritiesbyfinding counterparties totrades
inacostefficientmanner.They mayworkforlargebrokerage firms,forbanks,orat exchanges.
Blockbrokers helpwith theplacement oflargetrades.Typically,largetradesaredifficult
toplacewithoutmoving themarket. Forexample,alargesellordermight causea
security'spricetodecreasebeforetheordercanbefullyexecuted. Blockbrokershelp concealtheir
clients' intentionssothat themarket doesnotmoveagainstthem.
Investmentbanks helpcorporations sellcommon stock,preferred stock,anddebt
securitiestoinvestors.They alsoprovide advicetofirms,notably about mergers, acquisitions,
andraisingcapital.
Exchanges provide avenuewheretraderscanmeet.Exchangessometimes actasbrokers
byproviding electronic ordermatching. Exchangesregulatetheirmembers andrequire firmsthat
listontheexchangetoprovidetimelyfinancial disclosuresandtopromote shareholder
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Chủ đề 2: Market Organization.
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democratization. Exchangesacquiretheirregulatory powerthroughmember agreement
orfromtheirgovernments.
Alternative trading systems (ATS),which servethesametrading function asexchanges
buthavenoregulatory function, arealsoknown as electroniccommunicationnetworks (ECNs)
ormultilateraltrading facilities (MTFs). ATSthat donotrevealcurrent client ordersareknown
asdarkpools.
Dealers facilitate trading bybuyingfororsellingfromtheirowninventory. Dealers
provideliquidityinthemarket andprofitprimarily fromthespread(difference) between
thepriceatwhichtheywillbuy(bidprice)andthepriceatwhichtheywillsell(ask
price)thesecurityorother asset.
Somedealersalsoactasbrokers. Broker-dealers haveaninherentconflict ofinterest.As brokers,
theyshould seekthebestpricesfortheirclients,butasdealers,theirgoalisto
profitthroughpricesorspreads.Asaresult,traderstypicallyplacelimitsonhowtheir
ordersarefilledwhentheytransact withbroker-dealers.
Dealersthat tradewith central bankswhenthebanksbuyorsellgovernment securities
inordertoaffectthemoneysupplyarereferredtoasprimarydealers.
Securitizers
Securitizers poollargeamounts ofsecuritiesorother assetsandthen sellinterests inthe pooltoother
investors.Thereturns fromthepool,netofthesecuritizer'sfees,arepassed throughtotheinvestors.
Bysecuritizing theassets,thesecuritizer createsadiversified poolofassetswith morepredictable
cashflowsthan theindividual assetsinthepool.This
createsliquidityintheassetsbecausetheownership interests
aremoreeasilyvaluedandtraded.There arealsoeconomies ofscaleinthemanagement
costsoflargepoolsof assetsandpotentialbenefitsfromthemanager'sselection ofassets.
Assetsthat areoftensecuritized include mortgages,
carloans,creditcardreceivables,bankloans,andequipmentleases.The primary
benefitofsecuritization istodecreasethe
fundingcostsfortheassetsinthepool.Afirmmaysetupaspecial purposevehicle (SPY) orspecial
purposeentity(SPE)tobuyfirmassets,whichremovesthem fromthefirm's
balancesheetandmayincreasetheirvaluebyremoving theriskthat financialtrouble at
thefirmwillgiveother investorsaclaimtotheassets'cashflows.
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The cashflowsfromsecuritized assetscanbesegregatedbyrisk.The different risk
categoriesarecalledtranches.Theseniortranches providethemostcertain cashflows,
whilethejunior tranches havegreaterrisk.
Depository Institutions
Examplesofdepositoryinstitutionsinclude banks,creditunions, andsavingsandloans.
Theypayinterest oncustomer deposits andprovidetransaction servicessuchaschecking
accounts.These financialintermediaries then makeloanswith thefunds,which offer
diversification benefits.The intermediaries haveexpertiseinevaluating creditquality and
managing theriskofaportfolio ofloansofvarioustypes.
Other intermediaries, suchaspaydaylendersandfactoring companies, lendmoneyto
firmsandindividuals onthebasisoftheirwages,accounts receivable,andotherfuture
cashflows.These intermediaries oftenfinancetheloansbyissuingcommercial paperor other
debtsecurities.
Securitiesbrokersprovideloanstoinvestorswhopurchase securitiesonmargin. When thismargin
lending istohedgefundsandother institutions,thebrokersarereferredto asprime brokers.
Theequityowners(stockholders) ofbanks,brokers, andother intermediaries absorbany
loanlossesbeforedepositors andother lenders.Themoreequitycapitalanintermediary
has,thelessriskfordepositors. Poorlycapitalized intermediaries (thosewith less equity)
havelessincentive toreducetheriskoftheirloanportfolios becausetheyhaveless capitalatrisk.
Insurance Companies
Insurancecompanies areintermediaries, inthat theycollectinsurance premiums in return
forproviding riskreduction totheinsured. The insurance firmcandothis
efficientlybecauseitprovidesprotectiontoadiversifiedpoolofpolicyholders, whose
risksoflossaretypicallyuncorrelated. Thisprovidesmorepredictable lossesandcash
flowscompared toasingleinsurance contract, inthesamewaythat abank'sdiversified portfolio
ofloansdiversifiestheriskofloandefaults.
Insurance firmsalsoprovide abenefittoinvestorsbymanaging therisksinherentin insurance:
moralhazard, adverseselection, andfraud. Moral hazard occursbecausethe insured
maytakemorerisksonceheisprotectedagainstlosses.Adverseselection occurs
whenthosemostlikelytoexperiencelossesarethepredominantbuyersofinsurance. In fraud,
theinsured purposely causesdamageorclaimsfictitious lossessohecancollecton hisinsurance
policy.
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Arbitrageurs
Initspure (riskless)form,arbitragereferstobuying anassetinonemarket andreselling itinanother
atahigherprice.Bydoingso,arbitrageurs actasintermediaries, providing liquiditytoparticipants
inthemarketwheretheassetispurchased andtransferring the assettothemarket whereitissold.
Inmarketswithgoodinformation, purearbitrage israrebecausetraderswillfavorthemarketswith
thebestprices.Morecommonly, arbitrageurs trytoexploitpricing
differencesforsimilarinstruments. Forexample,adealerwhosellsacalloption will
oftenalsobuythestockbecausethecallandstockpricearehighlycorrelated. Likewise, arbitrageurs
willattempt toexploitdiscrepancies inthepricing ofthecallandstock. Many (risk)arbitrageurs
usecomplexmodelsforvaluation ofrelatedsecuritiesandfor riskcontrol. Creating
similarpositions usingdifferent assetsisreferredtoasreplication. This
isalsoaformofintermediationbecausesimilarrisksaretraded indifferent forms andindifferent
markets.
Clearinghousesand Custodians
Clearinghouses actasintermediaries betweenbuyersandsellersinfinancialmarkets and
provide:
Escrowservices(transferring cashandassetstotherespectiveparties).
Guarantees ofcontractcompletion.
Assurancethat margin tradershaveadequate capital.
Limitsontheaggregatenetorderquantity(buyordersminus sellorders) of members.
Throughtheseactivities, clearinghouses limitcounterpartyrisk,theriskthat theother
partytoatransaction willnotfulfillitsobligation. Insomemarkets, theclearinghouse
ensuresonlythetradesofitsmember brokersanddealers,who,inturn, ensurethe
tradesoftheirretailcustomers.
Custodiansalsoimprovemarket integrity byholding clientsecuritiesandpreventing
theirlossduetofraudorother eventsthat affectthebroker orinvestment manager.
Aninvestorwhoownsanasset,orhastherightorobligation under acontractto purchase
anasset,issaidtohavealongposition.Ashort positioncanresultfrom borrowing
anassetandsellingit,with theobligation toreplacetheassetinthefuture (a
shortsale).Thepartytoacontractwhomust sellordeliveranassetinthefuture isalso
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saidtohaveashortposition. Ingeneral,investorswhoarelongbenefitfromanincrease
inthepriceofanassetandthosewhoareshort benefitwhentheassetpricedeclines.
Hedgers useshortpositions inoneassettohedgeanexistingriskfromalongposition inanother
assetthathasreturns that arestrongly correlated with thereturns ofthe assetshorted.
Forexample,wheatfarmersmaytakeashortpositionin(i.e.,sell)wheat futures contracts.
Ifwheatpricesfall,theresulting increaseinthevalueoftheshort futurespositionoffsets,partially
orfully,thelossinthevalueofthefarmer'scrop.
Thebuyerofanoption contractissaidtobelongtheoption. Thesellerisshort the option
andissaidtohavewritten theoption. Note that aninvestorwhoislong(buys) acalloption
onanassetprofitswhenthevalueoftheunderlying
assetincreasesinvalue,whilethepartyshorttheoption haslosses.Alongpositioninaput option
onan assethastherighttoselltheassetataspecifiedpriceandprofitswhen thepriceofthe underlying
assetfalls,whilethepartyshort theoption haslosses.
Inswaps,eachpartyislongoneassetandshorttheother,sothedesignation ofthelong
andshortsideisoftenarbitrary. Usually,however,thesidethatbenefitsfromanincrease inthequoted
priceorrateisreferredtoasthelongside.
Inacurrency contract, eachpartyislongonecurrency andshort theother.Forexample,
thebuyerofaeurofutures contractpriced indollarsislongtheeuroandshort the
dollar.
Short SalesandPositions
Inashort sale,theshortseller(1)simultaneouslyborrows andsellssecuritiesthrougha broker,
(2)must return thesecurities attherequestofthelender orwhentheshortsale isclosedout, and
(3)mustkeepaportion oftheproceeds oftheshortsaleondeposit with
thebroker.Shortsellershopetoprofitfromafallinthepriceofthesecurityor assetsoldshort, buying
atalowerpriceinthefuture inordertorepaytheloanofthe assetoriginally soldatahigher
price.Therepayment oftheborrowed securityorother assetisreferred
toas"coveringtheshortposition."
Inashortsale,theshortsellermustpayalldividends orinterest that thelenderwould
havereceivedfromthesecuritythathasbeenloaned totheshort seller.Thesepayments
arecalledpayments-in-lieuofdividends orinterest. Theshort sellermust alsodeposit
theproceeds oftheshortsaleascollateral toguarantee theeventual repurchase ofthe
security.Thebroker then earnsinterest onthesefunds andmayreturn aportion ofthis interest
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totheshortsellerataratereferredtoastheshort rebate rate.The shortrebate
rateisusuallyonlyprovided toinstitutionalinvestorsandistypically0.1%lessthan
overnight interest rates.Ifthesecurityisdifficulttoborrow,theshort
rebateratemaybelowerornegative.The differencebetweentheinterest earned ontheproceeds
fromthe shortsaleandtheshort rebatepaidisthereturn tothelender ofthesecurities.Ashort
salemayalsorequiretheshortsellertodeposit additional margin intheformofcashor short-
termrisklesssecurities.
LeveragedPositions
The useofborrowed funds topurchase anassetresultsinaleveragedpositionandthe investor
issaidtobeusingleverage.Investorswhouseleveragetobuysecuritiesby borrowing
fromtheirbrokers aresaidtobuyonmargin andtheborrowed fundsare referredtoasamargin
loan.Theinterest ratepaidonthefunds isthecallmoney rate, which isgenerallyhigher than
thegovernment billrate.The callmoneyrateislowerfor largerinvestorswithbetter collateral.
Atthetimeofanewmargin purchase, investorsarerequired toprovide aminimum amount
ofequity,referredtoastheinitial margin requirement.This requirement may
besetbythegovernment,exchange,clearinghouse,orbroker. Lowerriskinaninvestor's portfolio
willoftenresultinthebrokerlending morefunds.
Theuseofleveragemagnifiesboth thegainsandlossesfromchangesinthevalueofthe underlying
asset.The additional riskfromtheuseofborrowed funds isreferredtoasrisk fromfinancial
leverage.
Theleverageratio ofamargin investment isthevalueoftheassetdividedbythevalueof
theequityposition. Forexample,aninvestorwhosatisfiesaninitialmargin
requirementof50%equityhasa2-to-1 leverageratiosothata10%increase(decrease)inthepriceof
theassetresultsina20% increase(decrease)intheinvestor'sequityamount.
Toensurethat theloaniscoveredbythevalueoftheasset,aninvestor
mustmaintainaminimumequitypercentage, calledthemaintenancemargin requirement,inthe
account. This minimumistypically25%ofthecurrent position value,butbrokersmay
requireagreaterminimumequitypercentage forvolatilestocks.
Ifthepercentage ofequityinamargin account fallsbelowthemaintenancemargin
requirement,theinvestorwillreceiveamargin call,arequesttobring theequity percentage
intheaccount backuptothemaintenancemargin percentage. Aninvestor
cansatisfythisrequestbydepositing additional funds ordepositing other unmargined
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securitiesthatwillbring theequitypercentage uptotheminimumrequirement.Ifthe investor
doesnotmeetthemargin call,thebrokermust selltheposition.
Thestockpricewhich resultsinamargin callcanbecalculatedbyusingthefollowing formula:
where:
P0 = initial purchase price
Example: Margin call price
¡fan investor purchases a stock for $40 per share with an initial margin requirement
of 50% and the maintenance margin requirement is 25%, at what price will the
investor get a margin call?
Answer:
A margin call is triggered at a price below $26.67.
Inashortsale,theinvestormustdeposit initial margin equaltoapercentage ofthe
valueofthesharessoldshort toprotect thebroker incasethesharepriceincreases.An
increaseinthesharepricecandecreasethemargin percentage belowthemaintenance margin
percentage andgenerate amargin call.
Securitiesdealersprovidepricesatwhich theywillbuyandsellshares.The bidprice is
thepriceatwhichadealerwillbuyasecurity.Theaskorofferpriceisthepriceatwhich
adealerwillsellasecurity.The differencebetween thebidandaskpricesisreferred toasthebid-ask
spread andisthesourceofadealer'scompensation. Thebidandaskare quoted
forspecifictradesizes(bidsizeandasksize).
The quotationinthemarket isthehighest dealerbidandlowestdealeraskfromamong
alldealersinaparticular security.Moreliquid securitieshavemarket quotationswithbid-
askspreadsthat arelower(asapercentage ofshareprice)andtherefore havelower transactions
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costsforinvestors.Traderswhopostbidsandoffersaresaidtomakea
market,whilethosewhotradewiththem atpostedpricesaresaidtotakethemarket.
When investorswant tobuyorsell,theymust enterordersthat specifythesizeofthe
tradeandwhether tobuyorsell. The ordercanalsoinclude executioninstructionsthat specify
howtotrade,validityinstructionsthatspecify whentheordercanbefilled,and
clearinginstructionsthat specifyhowtosettlethetrade.
ExecutionInstructions
Themostcommon orders,interms ofexecution instructions,aremarket orlimit orders. Amarket
order instructsthebroker toexecutethetradeimmediately atthebestpossible price.Alimit
orderplacesaminimumexecution priceonsellordersandamaximum execution
priceonbuyorders. Forexample,abuyorderwith alimitof$6willbe
executedimmediatelyaslongasthesharescanbepurchased for$6orless.
Amarket orderisoftenappropriatewhenthetraderwantstoexecutequickly,as
whenthetraderhasinformationshebelievesisnotyetreflectedinmarket prices.The disadvantage
ofmarket ordersisthat theymayexecuteatunfavorable prices,especially
ifthesecurityhaslowtrading volume relativetotheordersize.Amarket
buyordermayexecuteatahighpriceoramarket sellordermayexecuteatalowprice.Executing
atanunfavorable pricerepresents aconcessionbythetrader forimmediate liquidity.
Unfortunately,thesepriceconcessions areunpredictable.
Toavoidpriceexecution uncertainty, atrader canplacealimitorderinstead ofthe market
order.Thedisadvantage ofthelimit orderisthat itmight notbefilled.For
example,ifatraderplacesalimitbuyorderof$50andnooneiswilling tosellat$50,
theorderwillnotbefilled.Furthermore, ifthestockpricerisesovertime,thetrader
missesoutonthegains.
Alimitbuyorderabovethebestaskoralimitsellorderbelowthebestbidaresaidto
bemarketableoraggressively
pricedbecauseatleastpartoftheorderislikelytoexecuteimmediately.Ifthelimitpriceisbetween
thebestbidandthebestask,alimitorder is
saidtobemakinganewmarketorinsidethemarket.Limitorderswaiting toexecuteare
calledstandinglimit orders.
Alimitbuyorder atthebestbidoralimitsellorderatthebestaskaresaidtomake
themarket.Again,theordermight notbefilled.Abuyorderwithalimitpricebelowthebestbid,
orasellorderwith alimitpriceabovethebestask,issaidtobebehindthe
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market.Itwilllikelynotexecuteuntil securitypricesmovetowardthelimitprice.A
limitbuyorderwith apriceconsiderablylowerthan thebestbid,oralimit sellorder with
apricesignificantly higher than thebestask,issaidtobefar.fromthemarket.
Other execution instructions concern thevolumeofthetrade.All-or-nothingorders
executeonlyifthewholeordercanbefilled.Orders canspecifytheminimumsizeofa trade,
whichisbeneficialwhentrading costsdepend onthenumberofexecutedtrades rather than
thesizeoftheorder.
Tradevisibilitycanalsobespecified.Hidden orders arethoseforwhich onlythebroker
orexchangeknowsthetradesize.These areusefulforinvestorsthathavealargeamount
totradeanddonotwant torevealtheirintentions.
Traderscanalsospecifydisplaysize,wheresomeofthetradeisvisibletothemarket,
buttherestisnot.These arealsoreferred toasicebergorders becausepart
ofmostoftheorderishidden fromview.They allowtheinvestor toadvertisesomeofthetrade,with
therestofthetradepotentially executedoncethevisibleparthasexecuted. Sometimes entering
tradesforpart ofthe positionthetraderwishestoestablishisawayto estimate
theliquidityof,orthebuying interest in,thesecurityinquestion.
ValidityInstructions
Validityinstructions specifywhen anordershould beexecuted.Mostordersareday orders,
meaning theyexpireifunfilledbytheendofthetrading day.Good-till-cancelled orderslastuntil
theyarefilled.Immediate-or-cancelordersarecancelledunlesstheycan
befilledimmediately.They arealsoknown asfill-or-kill orders.Good-on-
closeordersareonlyfilledattheendofthetrading day.Iftheyaremarket orders,theyarereferredto
asmarket-on-closeorders.These areoften usedbymutual funds becausetheirportfolios
arevaluedusingclosingprices.There arealsogood-on-openorders.
StopOrders
Stoporders arethosethat arenotexecutedunlessthestoppricehasbeenmet.Theyareoften
referredtoasstoplossorders becausetheycanbeusedtoprevent lossesorto protect
profits.Supposeaninvestorpurchases astockfor$50.Iftheinvestorwants to selloutoftheposition
ifthepricefalls10%to$45,hecanenterastop-sell order
at$45.Ifthestocktradesdownto$45orlower,thistriggersamarket ordertosell.There is noguarantee
that theorderwillexecuteat$45,andarapidlyfallingstockcouldbesold atapricesignificantly
lowerthan $45.
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Astop-buyisenteredwith atstop (trigger)abovethecurrent market price.There are twoprimary
reasonsatraderwould enterastop-buy order.(1)Atraderwithashortposition couldattempt
tolimitlossesfromanincreasing stockpricewithastop-buy order.(2)Itisoftensaid,"You
don'tgetpaidforbeingrightuntil themarket agreeswith you."With thisinmind,
aninvestorwhobelievesastockisundervalued, butdoesnot wishtoownituntil therearesignsthat
market participants arebeingconvinced ofthis undervaluation,mayplaceastop-buy
orderatapricesomespecificpercentage abovethe current price.
Note thatstopordersreinforcemarket momentum.Stop-sellordersexecutewhen market
pricesarefalling,andstop-buy ordersexecutewhenthemarket isrising. Execution
pricesforstopordersaretherefore oftenunfavorable.
ClearingInstructions
Clearing instructionstellthetrader howtoclearandsettleatrade.They areusually standing
instructionsandnotattached toanorder.Retailtradesaretypicallycleared
andsettledbythebroker,whereasinstitutionaltradesmaybesettledbyacustodian or another
broker,which might bethetrader'sprime broker.Usingtwobrokersallowsthe
investortokeeponebrokerasherprimebroker formargin andcustodial serviceswhile
usingavarietyofother brokersforspecializedexecution.
One importantclearinginstructioniswhether asellorderisashortsaleorlongsale.In
theformer,thebroker mustconfirm that thesecuritycanbeborrowed andinthelatter, that
thesecuritycanbedelivered.
Primarycapital markets refertothesaleofnewlyissuedsecurities.Newequity issues
involveeither:
Newsharesissuedbyfirmswhosesharesarealreadytrading inthemarketplace. These
issuesarecalledseasoned offerings orsecondary issues.
First-time issuesbyfirmswhosesharesarenotcurrently publicly traded.Theseare
calledinitial public offerings (IPOs).
Secondary financial markets arewheresecuritiestradeaftertheirinitial issuance.Placing
abuyorderontheLondon StockExchangeisanorderinthesecondary market andwill
resultinpurchase ofexistingsharesfromtheircurrent owner.
PrimaryMarket: PublicOfferings
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Corporate stockorbond issuesarealmostalwayssoldwiththeassistanceofan investmentbanking
firm.The investment bankfindsinvestorswhoagreetobuypart of theissue.These
arenotactualordersbutarereferredtoasindicationsofinterest.When
thenumberofsharescoveredbyindications ofinterest aregreater (less)than thenumber
ofsharesto beoffered,theofferingpricemaybeadjusted upward (downward). This
processofgathering indications ofinterest isreferredtoasbook
building.InLondon,thebookbuilder isreferredtoasthebookrunner. InEurope, anaccelerated
bookbuildoccurswhensecuritiesmust beissuedquickly.Tobuild abook, theinvestment bank
disseminates information about thefirm'sfinancialsandprospects.The issuermust also
makedisclosuresincluding howthefundswillbeused.
Themostcommon wayaninvestment bankassistswith
asecurityissuanceisthroughanunderwrittenoffering. Here,theinvestment bank
agreestopurchase theentireissue atapricethat isnegotiated betweentheissuerandbank.
Iftheissueisundersubscribed, theinvestment bankmust buytheunsold
portion.InthecaseofanIPO,theinvestment bankalsoagreestomakeamarket
inthestockforaperiod aftertheissuancetoprovide pricesupport fortheissue.
Aninvestment bank canalsoagreetodistributesharesofanIPO onabestefforts basis, rather than
agreeingtopurchase thewholeissue.Iftheissueisundersubscribed, thebank is notobligated
tobuytheunsold portion.
Note that investment bankshaveaconflictofinterest inanunderwrittenoffer.Asthe
issuer'sagents,theyshould setthepricehightoraisethemostfundsfortheissuer.But, asunderwriters,
theywouldpreferthat thepricebesetlowenough that thewholeissue sells.Thisalsoallowsthem
toallocateportions ofanundervalued IPO totheirclients. This
resultsinIPOstypicallybeingunderpriced.
IssuersalsocouldhaveaninterestinunderpricingtheIPO becauseofthenegativepublicity
whenanundersubscribed IPO initially tradesatapricebelowtheIPO priceinvestorspay.AnIPO
that is oversubscribedandhastheexpectation oftrading significantly aboveitsIPO priceis
referredtoasahot issue.
PrimaryMarket: Private PlacementsandOther Transactions
Inaprivate placement,securitiesaresolddirectlytoqualified investors, typicallywith
theassistanceofaninvestment bank. Qualified investorsarethosewithsubstantial
wealthandinvestment knowledge. Privateplacements donotrequire theissuerto discloseasmuch
informationastheymustwhenthesecuritiesarebeingsoldtothe public.The
issuancecostsarelesswith aprivateplacement andtheofferpriceisalso
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lowerbecausethesecuritiescannot beresoldinpublic markets, making themless
valuablethansharesregisteredforpublic trading.
Inashelfregistration,afirmmakesitspublic disclosuresasinaregularofferingbut
thenissuestheregisteredsecuritiesovertimewhenitneedscapitalandwhenthe markets
arefavorable.
Adividendreinvestmentplan (DRP orDRIP) allowsexistingshareholders tousetheir dividends
tobuynewsharesfromthefirmataslightdiscount.
Inarights offering, existingshareholders aregiventherighttobuynewsharesatadiscount
tothecurrent market price.Shareholders tend todislikerightsofferings becausetheirownership
isdiluted unlesstheyexercisetheirrightsandbuytheadditional shares.However,rightscanbetraded
separatelyfromthesharesthemselvesinsome circumstances.
Inaddition tofirmsissuingsecurities,governments issueshort-termandlong-term debt,
eitherbyauction orthroughinvestment banks.
ImportanceoftheSecondaryMarket
Secondary marketsareimportantbecausetheyprovideliquidityandprice/value
information.Liquid marketsarethoseinwhichasecuritycanbesoldquicklywithout incurring
adiscountfromthecurrent price.The better thesecondary market,
theeasieritisforfirmstoraiseexternalcapital intheprimary market, which resultsinalowercost
ofcapitalforfirmswith sharesthat haveadequate liquidity.
The trading ofsecurities inthesecondary markethasencouraged thedevelopment of market
structures tofacilitate trading. Trading canbeexamined according towhen securitiesaretraded
andhowtheyaretraded.
Securitiesmarketsmaybestructuredas callmarketsorcontinuous markets. Incall markets,
thestockis onlytraded atspecifictimes.Callmarketsarepotentially very
liquidwheninsessionbecausealltradersare present, buttheyareobviouslyilliquid
betweensessions.Inacallmarket, alltrades,bids,andasksaredeclared, andthenonenegotiated
priceissetthatclearsthemarket forthestock.Thismethod isusedin
smallermarkets butisalsousedtosetopening pricesandpricesaftertrading haltson
majorexchanges.
Incontinuousmarkets, tradesoccuratanytimethemarket isopen.Thepriceissetby
eithertheauction processorbydealerbid-askquotes.
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Market Structures
There arethreemain categoriesofsecuritiesmarkets: quote-drivenmarketswhere
investorstradewithdealers,order-drivenmarketswhererulesareusedtomatch buyers
andsellers,andbrokeredmarketswhereinvestorsusebrokers tolocateacounterpartyto atrade.
Quote-Driven Markets
Inquote-drivenmarkets, traderstransact with dealers(marketmakers)whopostbidand
askprices.Dealersmaintainaninventory ofsecurities. Quote-drivenmarketsarethus sometimes
calleddealermarkets, price-driven markets, orover-the-countermarkets. Mostsecuritiesother
than stockstradeinquote-drivenmarkets.Trading oftentakesplaceelectronically.
Order-Driven Markets
Inorder-drivenmarkets, ordersareexecutedusingtrading rules,which arenecessary
becausetraders areusuallyanonymous. Exchangesandautomatedtrading systemsare
examplesoforder-driven markets.Twosetsofrulesareusedinthesemarkets: order matching
rulesandtradepricing rules.
Order matchingrules establishanorderprecedencehierarchy.Pricepriority isone criteria,
wherethetradesgivenhighestpriority arethoseatthehighest bid(buy)and
lowestask(sell).Ifordersareatthesameprices,asecondaryprecedence rulegives priority tonon-
hiddenordersandearliestarrivingorders.These rulesencourage traders topricetheir
tradesaggressively, displaytheirentireorders, andtradeearlier,thereby improving liquidity.
Afterordersarecreatedusingordermatching rules,trade pricing rulesareusedto determine
theprice.Under theuniformpricingrule,allorderstradeatthesameprice, which isthepricethat
resultsinthehighestvolumeoftrading.The discriminatory
pricingruleusesthelimitpriceoftheorderthat arrivedfirstasthetradeprice.
Inanelectronic crossingnetwork, thetypicaltrader isaninstitution.Orders arebatched together
andcrossed(matched) atfixedpoints intimeduring thedayattheaverageof
thebidandaskquotesfromtheexchangewherethestockprimarily trades.This pricing
ruleisreferredtoasthederivativepricingrulebecauseitisderivedfromthesecurity's
mainmarket.Thepriceisnotdetermined byordersinthecrossingnetwork.
BrokeredMarkets
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Inbrokeredmarkets, brokersfindthecounterpartyinordertoexecuteatrade.This
serviceisespeciallyvaluablewhenthetraderhasasecuritythat is unique orilliquid.
Examplesarelargeblocksofstock,realestate,andartwork. Dealerstypicallydonot
carryaninventory oftheseassetsandtherearetoofewtradesfortheseassetstotradein order-driven
markets.
Market Information
Amarket issaidtobepre-tradetransparentifinvestorscanobtain pre-trade
information regarding quotesandorders.Amarket ispost-tradetransparentifinvestors
canobtain post-trade informationregarding completed tradepricesandsizes.
Buy-sidetradersvaluetransparency becauseitallowsthem tobetter understand security
valuesandtrading costs.Dealers,ontheotherhand, preferopaque markets becausethis
providesthemwithaninformational advantageovertraderswhotradeless frequently in
thesecurity.Transactions costsandbid-askspreadsarelargerinopaque markets.
Awell-functioningfinancialsystemallowsentities toachievetheirpurposes. More specifically,
complete markets fulfillthefollowing:
Investorscansave forthefuture atfairratesofreturn.
Creditworthyborrowers canobtain funds.
Hedgers canmanagetheir risks.
Traderscanobtain thecurrencies, commodities, andother assetstheyneed.
Ifamarket canperform thesefunctions atlowtrading costs(including commissions, bid-
askspreads,andpriceimpacts), itissaidtobeoperationallyefficient. Ifsecurity
pricesreflectalltheinformationassociatedwith fundamental valueinatimelyfashion,
thenthefinancialsystemisinformationallyefficient. Awell-functioningfinancial
systemhascomplete marketsthat areoperationally andinformationallyefficient,with pricesthat
reflectfundamental values.
Awell-functioningfinancialsystemhasfinancial intermediaries that:
Organize trading venues,including exchanges,brokerages, andalternative trading
systems.
Supplyliquidity.
Securitizeassetssothat borrowers canobtain fundsinexpensively.
Managebanksthat usedepositor capitaltofundborrowers.
Manageinsurance firmsthat poolunrelated risks.
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Manageinvestment advisoryservicesthat assistinvestorswithassetmanagement
inexpensively.
Provideclearinghouses thatsettletrades.
Managedepositories that provideforassetsafety.
Thebenefitsofawell-functioningfinancialsystemaretremendous. Saverscanfund
entrepreneurs whoneedcapitaltofund newcompanies. Company riskscanbe sharedsothat
riskycompanies canbefunded. Thesebenefitsareenhanced because thetransactions
canoccuramong strangers,widening theopportunitiesforcapital formation andrisksharing
intheeconomy.
Furthermore, ininformationallyefficientlymarkets, capitalisallocated toitsmost productive
use.That is,theyareallocationally efficient. Informational
efficiencyis broughtabout bytraderswhobidpricesupanddown inresponsetonewinformation
that changesestimates ofsecurities' fundamental values.If
markets areoperationally
efficient,securitypriceswillbemoreinformationallyefficientbecauselowtrading costs encourage
trading basedonnewinformation.
Theexistenceofaccounting standardsandfinancialreportingrequirements
alsoreducesthecostsofobtaininginformationand increasessecurityvalues.
2.2 Security market indices
Asecurity market indexisusedtorepresent theperformance ofanassetclass,security market,
orsegment ofamarket.They areusuallycreatedasportfolios
ofindividual securities,whicharereferredtoastheconstituent securities
oftheindex.Anindexhasanumerical valuethat iscalculated fromthemarket prices
(actualwhenavailable,orestimated) ofitsconstituentsecuritiesatapoint intime.Anindexreturn
isthe percentage changeintheindex'svalueoveraperiod oftime.
Anindexreturn maybecalculated usingapriceindex orareturn index.Apriceindex
usesonlythepricesoftheconstituentsecuritiesinthereturn calculation.Arateof return that
iscalculated basedonapriceindexisreferredtoasapricereturn.
Areturn indexincludes both pricesandincome fromtheconstituentsecurities.Arate ofreturn that
iscalculated basedonareturn indexiscalledatotal return.Iftheassets inanindexproduce interim
cashflowssuchasdividends orinterest payments, thetotal return willbegreaterthan
thepricereturn.
Oncereturns arecalculated foreachperiod, theythen canbecompoundedtogether to
arriveatthereturn forthemeasurement period:
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where:
RP = portfolio return during the measurement period
k = total number of subperiods
RSk = portfolio return during the subperiod k
For example, if the returns for the first two periods were 0.50% and 1.04%, they would be
geometrically linked to produce 1.55%:
Rp = (1 + Rs1)(1 + Rs2)-1 = (1.005)(1.0104)-1 = 0.0155 or 1.55%
If the starting index value is 100, its value after two periods would be 100 x 1.0155 =
101.55.
Indexproviders mustmakeseveraldecisions:
What isthetargetmarkettheindexisintendedtomeasure?
Which securitiesfromthetargetmarket should beincluded?
Howshould thesecuritiesbeweighted intheindex?
Howoftenshould theindexberebalanced?
When should theselection andweighting ofsecuritiesbere-examined?
Thetargetmarket maybedefinedverybroadly (e.g.,stocksintheUnited States)or narrowly
(e.g.,small-capvaluestocksintheUnited States).Itmayalsobedefinedby geographic
regionorbyeconomic sector(e.g.,cyclicalstocks).The constituentstocks
intheindexcouldbeallthestocksinthat market orjustarepresentative sample.Theselection
processmaybedetermined byanobjective ruleorsubjectively byacommittee.
Weighting schemesforstockindexesinclude priceweighting, equalweighting, market
capitalization weighting, float-adjusted market capitalization weighting, and fundamental
weighting.
Aprice-weightedindex issimplyanarithmetic averageofthepricesofthesecurities included
intheindex.The divisorofaprice-weighted indexisadjusted forstocksplits
andchangesinthecomposition oftheindexwhensecuritiesareaddedordeleted, such that
theindexvalueisunaffected bysuchchanges.
Theadvantage ofaprice-weighted indexisthat itscomputationissimple.One disadvantage isthat
agivenpercentage changeinthepriceofahigherpricedstockhas agreaterimpact
ontheindex'svaluethan doesanequalpercentage changeintheprice
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ofalowerpricedstock.Putanother way,higherpricedstockshavemoreweight inthe calculation
ofaprice-weighted index.Additionally,astock'sweightintheindexgoing
forwardchangesifthefirmsplitsitsstock,repurchases stock,orissuesstockdividends,
asalloftheseactionswillaffectthepriceofthestockandtherefore itsweightinthe index.Aportfolio
thathasanequalnumberofsharesineachoftheconstituentstocks
willhavepricereturns (ignoring dividends) thatwillmatch thereturns ofaprice-weighted index.
Twomajorprice-weighted indexesaretheDowJonesIndustrial Average(DJIA)andthe Nikkei
DowJonesStockAverage.The DJIAisaprice-weighted indexbasedon30U.S. stocks.TheNikkei
Dowisconstructed fromthepricesof225stocksthat tradeinthe firstsection
oftheTokyoStockExchange.
Anequal-weightedindex iscalculated asthearithmeticaveragereturn oftheindex
stocksand,foragiventimeperiod, would bematched bythereturns onaportfolio that
hadequaldollaramounts investedineachindexstock.Aswith aprice-weighted index, anadvantage
ofanequal-weightedindexisitssimplicity.
One complication with anequal-weightedindexreturn isthat amatching
portfoliowouldhavetobeadjusted periodically (rebalanced) aspriceschangesothat thevaluesof
allsecuritypositions aremadeequaleachperiod. Theportfolio rebalancing required to match
theperformance ofanequal-weightedindexcreateshightransactions coststhat would
decreaseportfolio returns.
Another concernwith anequal-weightedindexisthat theweightsplacedonthereturns
ofthesecuritiesofsmallercapitalization firmsaregreaterthan theirproportionsofthe
overallmarket valueoftheindexstocks.Conversely,theweightsonthereturns oflarge
capitalization firmsintheindexaresmallerthan theirproportionsoftheoverallmarket
valueoftheindexstocks.
TheValueLineComposite AverageandtheFinancialTimesOrdinaryShareIndexare well-
known examplesofequal-weightedindexes.
Amarket capitalization-weightedindex (orvalue-weightedindex)hasweightsbased
onthemarket capitalization ofeachindexstock(current stockpricemultiplied bythe number
ofsharesoutstanding) asaproportionofthetotalmarket capitalization ofall
thestocksintheindex.Amarket capitalization-weightedindexreturn canbematched
withaportfolio inwhichthevalueofeachsecuritypositionintheportfolio isthe
sameproportionofthetotalportfolio valueastheproportionofthat security'smarket
capitalization tothetotalmarket capitalization ofallofthesecuritiesincluded inthe
index.Thisweighting method morecloselyrepresents
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changesinaggregateinvestorwealththanpriceweighting.
Becausetheweightofanindexstockisbasedonitsmarket capitalization, amarket
capitalization-weightedindexdoesnotneedtobeadjusted when
astocksplitsorpaysastockdividend.
Analternative tousingafirm'smarket capitalization tocalculateitsweightinanindex
istouseitsmarket float.Afirm'smarket
floatisthetotalvalueofthesharesthatareactuallyavailabletotheinvestingpublic
andexcludesthevalueofsharesheldby controlling stockholders becausetheyareunlikely
toselltheirshares.Forexample, thefloatforMicrosoft would
excludesharesownedbyBillGatesandPaulAllen(the founders) andthoseofcertain other
largeshareholders aswell.Themarket floatis oftencalculated excluding
thosesharesheldbycorporations orgovernments aswell.
Sometimes themarket floatcalculation excludessharesthat
arenotavailabletoforeignbuyersandisthenreferredtoasthefreefloat.The reasonforthisistobetter
match theindexweightsofstockstotheirproportionsofthetotalvalueofallthesharesofindex
stocksthat areactuallyavailabletoinvestors.
Afloat-adjustedmarket capitalization-weightedindex isconstructed likeamarket
capitalization-weightedindex.Theweights, however,arebasedontheproportionate
valueofeachfirm'ssharesthat areavailabletoinvestorstothetotalmarketvalueof
thesharesofindexstocksthat areavailabletoinvestors. Firmswithrelativelylarge percentages
oftheirsharesheldbycontrolling stockholders willhavelessweightthan theyhaveinanunadjusted
market-capitalization index.
Theadvantage ofmarket capitalization-weightedindexesofeithertypeisthat index
securityweightsrepresent proportionsoftotalmarket value.Theprimary disadvantage ofvalue-
weightedindexesisthat therelativeimpact ofastock'sreturn ontheindex
increasesasitspricerisesanddecreasesasitspricefalls.Thismeansthatstocksthat
arepossiblyovervaluedaregivendisproportionately highweightsintheindexandstocksthat
arepossiblyundervalued aregivendisproportionately lowweights. Holding aportfolio that
tracksavalue-weightedindexis,therefore, similartofollowinga
momentumstrategy,underwhichthemostsuccessfulstocksaregiventhegreatest
weightsandpoorperforming stocksareunderweighted.
The Standard andPoor's500(S&P500)IndexComposite isanexampleofamarket capitalization-
weightedindex.
Anindexthat usesfundamentalweightingusesweightsbasedonfirmfundamentals,
suchasearnings, dividends, orcashflow. Incontrast tomarket capitalization index weights,
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theseweightsareunaffected bythesharepricesoftheindexstocks(although relatedtothem
overthelongterm). Fundamentalweightscanbebasedonasingle measureorsomecombination
offundamentalmeasures.
Anadvantage ofafundamental-weighted indexisthat itavoidsthebiasofmarket capitalization-
weightedindexestoward theperformance ofthesharesofovervaluedfirms
andawayfromtheperformance ofthesharesofundervalued firms.Afundamental• weighted
indexwillactuallyhaveavaluetilt, overweighting firmswithhighvalue-based
metricssuchasbook-to-marketratiosorearningsyields.Note that afirmwith ahigh
earningsyield(totalearnings tototal marketvalue)relativetoother indexfirmswillby
constructionhaveahigherweightinanearnings-weightedindexbecause,amongindex
stocks,itsearnings arehighrelativetoitsmarket value.
PriceWeighting
Aprice-weighted indexaddsthemarket pricesofeachstockintheindexanddividesthis
totalbythenumber ofstocksintheindex.Thedivisor,however,must beadjusted
forstocksplitsandother changesintheindexportfolio tomaintain thecontinuity ofthe
seriesovertime.
Example: Price-weighted index
Given the information for the three stocks presented in the following fgurc, calculate
a price-weighted index return over a 1-month period.
Index Firm Data
Share Price
December31, 20X6
Share Price
January 31. 20X7
Stock X $10 $20
StockY $20 $15
Stock Z $60 $40
Answer:
The price-weighted index is (10 + 20 + 60) / 3 = 30 as of December31 and (20 + 15
40) / 3 = 25 as of January 31. Hence, the price-weighted 1-month percentage return is:
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The returns onaprice-weighted indexcouldbematched bypurchasing anequalnumber
ofsharesofeachstockrepresented intheindex.Becausetheindexis priceweighted, a percentage
changeinahigh-priced stockwillhavearelativelygreatereffectontheindex than
thesamepercentage changeinalow-priced stock.
Market Capitalization Weighting
Amarket capitalization-weighted indexis calculated bysumming thetotalvalue(current
stockpricemultiplied bythenumber ofsharesoutstanding)
ofallthestocksintheindex.Thissumisthen divided byasimilarsumcalculated during
theselectedbaseperiod.The ratioisthen multiplied bytheindex'sbasevalue(typically 100).
Forexample,ifthetotalmarketvaluesoftheindexportfolio onDecember 31and January
31are$80million and$95million, respectively,theindexvalueattheendof January is:
Thus, the market capitalization-weighted index percentage return is: (118.75/100) - 1 =
18.75%
The followingexampleofprice-weighting versusmarketvalue-weighting showshow
thesetwoindexesarecalculated andhowtheydiffer.
Example: Price-weighted vs. market capitalization-weighted indexes
Consider che three firms described below. Compare the effects on a price-weighted
index and a market capitalization-weighted index if Stock A doubles in price or if
Stock C doubles in price. Assume the period shown in the table is the base period for
the market capitalization-weighted index and that its base value is l00.
Index Firm Data
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Company Number of Shares
Outstanding (000s)
Stock Price Capitalization
(000s)
A 100 $100 $10.000
B 1,000 $10 $10,000 $10 $10,000
C 20,000 $1 $20,000
Answer:
The price-weighted index equals:
If Stock A doubles in price to $200, the price-weighted index value is:
If Stock C doubles in price to $2, the price-weighted index value is:
If Stock A doubles in value, the index goes up 33.33 points, while if Stock C doubles
in value, the index only goes up 0.33 points. Changes in the value of the firm with
the highest stock price have a disproportionately large influence on a price-weighted
index.
For a market capialization-weighted index, the base period market capitalization is
(100,000 × $100) + (1,000,000 $10) + (20,000,000 $1) = $40,000,000.
If Stock A doubles in price to $200, the index goes to:
If Stock C doubles in price to $2, the index goes to:
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In the market capitalization-weighted index, the returns on Stock C have the greatest
influence on the index return because Stock C’s market capitalization is larger than
that of Stock A or Stock B.
Equal Weighting
Anequal-weighted indexplacesanequalweightonthereturns ofallindexstocks,
regardlessoftheirpricesormarket values.A$2changeinthepriceofa$20stockhas
thesameeffectontheindexasa$30changeinthepriceofa$300stockregardlessof
thesizeofthecompany.The return ofanequal-weighted indexoveragivenperiod is
oftencalculated asasimpleaverageofthereturns oftheindexstocks.
2.3 Market efficiency
Aninformationallyefficient capital market isoneinwhichthecurrent priceofa
securityfully,quickly,andrationally reflectsallavailableinformation about that security.This
isreallyastatistical concept. Anacademicmight say,"Givenallavailable information,current
securitiespricesareunbiased estimates oftheirvalues,sothat the expected return
onanysecurityisjusttheequilibrium return
necessarytocompensateinvestorsfortherisk(uncertainty) regarding itsfuture cashflows."This
concept isoftenput moreintuitively as,"Youcan'tbeatthemarket."
Inaperfectly efficientmarket, investorsshould useapassiveinvestmentstrategy(i.e.,buying
abroadmarket indexofstocksandholding it)becauseactiveinvestment
strategieswillunderperform duetotransactions costsandmanagement fees.However,
totheextent thatmarket pricesareinefficient, activeinvestment strategiescangenerate
positiverisk-adjusted returns.
One method ofmeasuring amarket'sefficiencyistodetermine thetimeittakesfor trading
activitytocauseinformationtobereflectedinsecurityprices(i.e.,thelagfrom
thetimeinformationisdisseminated tothetimepricesreflectthevalueimplications of that
information). Insomeveryefficientmarkets, suchasforeigncurrency markets, this
lagcanbeasshort asaminute. Ifthereisasignificant lag,informed traderscanusethe
informationtopotentially generatepositiverisk-adjusted returns.
Note that market pricesshould notbeaffectedbythereleaseofinformationthat is wellanticipated.
Onlynewinformation(information that isunexpected andchanges expectations) should
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moveprices.The announcementthat afirm'searningswereup45% overthelastquarter
maybegoodnewsiftheexpected increasewas20%. On theother hand,
thismaybebadnewsifa70%increasewasanticipated ornonewsatallifmarket participants
correctly anticipated quarterly earnings.
Themarket valueofanassetisitscurrent price.The intrinsicvalueorfundamental
valueofanassetisthevaluethatarational investorwith fullknowledge about theasset's
characteristics wouldwillinglypay.Forexample,abond investorwould fullyknowand
understandabond's coupon, maturity, default risk,liquidity, andother characteristicsandwould
usethesetoestimate itsintrinsicvalue.
Inmarkets that arehighlyefficient,investorscantypicallyexpectmarketvaluestoreflect
intrinsicvalues.Ifmarketsarenotcompletely efficient,activemanagerswillbuyassetsforwhich
theythink intrinsicvaluesaregreaterthan marketvaluesandsellassetsforwhichtheythink
intrinsicvaluesarelessthan marketvalues.
Intrinsicvaluescannot beknownwith certaintyandareestimated byinvestorswho
willhavediffering estimates ofanasset'sintrinsicvalue.The morecomplex anasset,
themoredifficultitistoestimate itsintrinsicvalue.Furthermore,intrinsicvalueis
constantlychanging asnew(unexpected) informationbecomesavailable.
Markets aregenerallyneither perfectly efficientnorcompletelyinefficient.The degreeof
informationalefficiencyvariesacrosscountries,time,andmarket types.Thefollowing
factorsaffectthedegreeofmarket efficiency.
Numberofmarket participants.Thelargerthenumberofinvestors, analysts,and
traderswhofollowanassetmarket,themoreefficientthemarket.The numberof participants
canvarythroughtimeandacrosscountries. Forexample,somecountries prevent foreigners
fromtrading intheirmarkets,reducing market efficiency.
Availability ofinformation.Themoreinformationisavailabletoinvestors, themore
efficientthemarket. Inlarge,developed markets suchastheNewYorkStockExchange,
informationisplentifulandmarkets arequite efficient.Inemerging markets, the
availabilityofinformationislower,andconsequently,market pricesarerelativelyless
efficient.Someassets,suchasbonds, currencies, swaps, forwards, mortgages, andmoney market
securitiesthat tradeinover-the-counter(OTC) markets, mayhavelessavailable information.
Accesstoinformationshould notfavoronepartyoveranother. Therefore, regulations
suchastheU.S.SecuritiesandExchangeCommission's Regulation FD(fairdisclosure) requirethat
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firmsdisclosethesameinformationtothepublic that theydisclosetostock analysts.Traderswith
material insideinformationabout afirmareprohibitedfrom trading onthat information.
Impedimentstotrading.Arbitragereferstobuying anassetinonemarket and
simultaneouslysellingitatahigher priceinanother market.This
buyingandsellingofassetswillcontinueuntil thepricesinthetwomarkets
areequal.Impedimentsto arbitrage, suchashightransactions costsorlackof
information,willlimit arbitrage activityandallowsomepriceinefficiencies (i.e.,mispricing
ofassets)topersist.
Shortsellingimprovesmarket efficiency.Thesales pressurefromshortsellingprevents
assetsfrombecoming overvalued. Restrictions onshortselling,suchas aninability to
borrowstockcheaply,canreducemarket efficiency.
Transactionandinformationcosts.Totheextent that thecostsofinformation,analysis,
andtrading aregreaterthan thepotentialprofitfromtrading misvalued securities,market
priceswillbeinefficient. Itisgenerallyaccepted thatmarkets areefficientif,after deducting
costs,therearenorisk-adjusted returns tobemadefromtrading basedon publicly
availableinformation.
ProfessorEugeneFamaoriginallydeveloped theconcept ofmarket efficiencyand identified
threeformsofmarket efficiency.Thedifference amongthem isthat eachis basedonadifferent
setofinformation.
1. Weak-form market efficiency.Theweakformoftheefficientmarketshypothesis (EMH)
statesthatcurrent securitypricesfully reflect allcurrentlyavailablesecurity marketdata.Thus,
pastpriceandvolume (market) informationwillhaveno predictivepoweraboutthefuturedirection
ofsecuritypricesbecausepricechanges willbeindependentfromoneperiodtothenext.Inaweak-
form efficientmarket, an investorcannot achievepositiverisk-adjusted returns
onaveragebyusingtechnical analysis.
2. Semi-strongformmarket efficiency.Thesemi-strong formoftheEMH holdsthat
securitypricesrapidlyadjustwithoutbiastothearrivalofallnewpublicinformation.
Assuch,current securitypricesfullyreflect all publiclyavailableinformation.Thesemi-strong
formsayssecuritypricesincludeallpastsecuritymarketinformationand
nonmarketinformationavailabletothepublic.Theimplication isthataninvestor
cannotachievepositiverisk-adjustedreturnsonaveragebyusingfundamental analysis.
3. Strong-formmarket efficiency.ThestrongformoftheEMH statesthatsecurity pricesfully
reflect all informationfrom bothpublicand private sources. Thestrongform
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includesalltypesofinformation:pastsecuritymarketinformation,public, and private
(inside)information.Thismeansthatnogroupofinvestorshasmonopolistic
accesstoinformationrelevanttotheformationofprices,andnoneshouldbeableto consistently
achievepositiveabnormal returns.
Giventheprohibitiononinsidertrading inmostmarkets, itwouldbeunrealistic to
expectmarketstoreflectallprivateinformation.Theevidencesupports theviewthat
marketsarenotstrong-formefficient.
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3 Chủ đề 3: Equity Analysis and Valuation
3.1 Overview of equity securities
Commonsharesarethemostcommon formofequityandrepresent anownership
interest.Commonshareholders havearesidualclaim(aftertheclaimsofdebtholders
andpreferred stockholders) onfirmassetsifthefirmisliquidated andgovernthe corporation
throughvoting rights. Firmsareunder noobligation to paydividends on common equity;
thefirmdetermines whatdividend willbepaidperiodically. Commonstockholders
areabletovotefortheboard ofdirectors,onmergerdecisions, andontheselection ofauditors.
Iftheyareunable toattend theannual meeting, shareholders can votebyproxy (havingsomeone
elsevoteastheydirectthem, ontheirbehalf).
Inastatutoryvoting system,eachshareheldisassignedonevoteintheelection ofeach member
oftheboardofdirectors. Under cumulative voting,shareholders canallocate
theirvotestooneormorecandidates astheychoose.Forexample,consider asituation
whereashareholder has100sharesandthreedirectors willbeelected.Under statutory voting,
theshareholder canvote100sharesforhisdirector choiceineachelection. Undercumulative
voting, theshareholder has300votes,which canbecastforasingle candidate
orspreadacrossmultiple candidates. The threereceivingthegreatestnumber
ofvotesareelected.Cumulative votingmakesitpossibleforaminorityshareholder to
havemoreproportionalrepresentation ontheboard.Thewaythemathworks,aholder
of30%ofthefirm'ssharescouldchoosethreeoftendirectorswith cumulative voting
butcouldelectnodirectors under statutoryvoting.
Callable commonsharesgivethefirmtherighttorepurchase thestockatapre-specified
callprice.Investors receiveafixedamount whenthefirmcallsthestock.The callfeature
benefitsthefirmbecausewhen thestock'smarket priceisgreaterthan
thecallprice,thefirmcancallthesharesandreissuethemlateratahigherprice. Calling theshares,
similarlytotherepurchase ofshares,allowsthefirmtoreduceitsdividend payments
withoutchanging itsper-share dividend.
Putable commonsharesgivetheshareholder therighttosellthesharesbacktothe
firmataspecificprice.Aputoption onthesharesbenefitstheshareholder
becauseiteffectivelyplacesafloorunder thesharevalue.Shareholders payfortheput option
becauseother things equal,putable sharesaresoldforhigherpricesthan non-putable
sharesandraisemorecapitalforthefirmwhentheyareissued.
Preference shares (orpreferredstock)havefeaturesofboth commonstockanddebt.
Aswithcommon stock,preferred stockdividends arenotacontractualobligation,the
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sharesusuallydonotmature, andthesharescanhaveput orcallfeatures. Likedebt, preferred
sharestypicallymakefixedperiodicpayments toinvestorsanddonotusually havevoting rights.
Cumulativepreferencesharesareusuallypromisedfixeddividends, andanydividends that
arenotpaidmust bemadeupbeforecommon shareholders canreceivedividends. Thedividends
ofnon-cumulativepreferencesharesdonotaccumulateovertimewhentheyarenotpaid,but
dividends foranyperiodmust bepaidbeforecommon shareholders canreceivedividends.
Preferredshareshaveastatedparvalueandpayapercentage dividendbasedonthepar
valueoftheshares.An$80parvaluepreferred
witha10%dividendpaysadividendof$8peryear.Investors
inparticipatingpreferencesharesreceiveextradividends iffirm
profitsexceedapredeterminedlevelandmayreceiveavaluegreaterthan
theparvalueofthepreferred stockifthefirmisliquidated.Non-
participatingpreferenceshareshaveaclaimequaltoparvalueintheeventofliquidationanddonots
hareinfirmprofits. Smallerandriskierfirmswhoseinvestorsmaybeconcernedabout
thefirm'sfuture often issueparticipatingpreferred
stocksoinvestorscanshareintheupsidepotentialofthe firm.
Convertiblepreferencesharescanbeexchanged forcommonstockataconversion ratio
determinedwhenthesharesareoriginallyissued.Ithasthefollowingadvantages:
Thepreferred dividend ishigherthan acommon dividend.
Ifthefirmisprofitable, theinvestor canshareintheprofitsbyconvertinghisshares
intocommon stock.
Theconversion option becomesmorevaluablewhenthecommonstockprice increases.
Preferredshareshavelessriskthan common sharesbecausethedividendisstable
andtheyhavepriority overcommon stockinreceivingdividends andintheeventof
liquidationofthefirm.
Becauseoftheirupsidepotential,convertible preferred sharesareoftenusedtofinance
riskyventure capitalandprivateequityfirms.Theconversion featurecompensates
investorsfortheadditionalrisktheytakewhen investing insuchfirms.
Afirmmayhavedifferent classesofcommon stock(e.g.,"ClassA"and"ClassB" shares).One class
mayhavegreatervoting powerandseniority ifthefirm'sassetsare liquidated.The
classesmayalsobetreated differently withrespecttodividends, stocksplits,andother transactions
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withshareholders. Informationontheownership and voting rightsofdifferent
classesofequitysharescanbefound inthecompany'sfilings withsecuritiesregulators,
suchastheSecuritiesandExchangeCommission inthe United States.
The discussionsofarhascentered onequitythat ispublicly traded. Private equity is
usuallyissuedtoinstitutionalinvestorsviaprivateplacements. Privateequity markets are
smallerthanpublic marketsbutaregrowingrapidly.
Compared topublic equity,privateequityhasthefollowingcharacteristics:
Lessliquiditybecausenopublic market forthesharesexists.
Sharepriceisnegotiated between thefirmanditsinvestors, notdetermined ina market.
Morelimited firmfinancialdisclosurebecausethereisnogovernment orexchange
requirement todoso.
Lowerreportingcostsbecauseoflessonerous reportingrequirements.
Potentially weakercorporate governance becauseofreduced reportingrequirements
andless public scrutiny.
Greaterabilitytofocusonlong-term prospects becausethereisnopublic pressure forshort-
termresults.
Potentially greaterreturn forinvestorsoncethefirmgoespublic.
The threemaintypesofprivateequity investments areventure capital, leveraged buyouts,
andprivateinvestments inpublic equity.
Venture capital referstothecapitalprovided tofirmsearlyintheirlifecyclestofund
theirdevelopment andgrowth. Venturecapitalfinancing atvariousstagesofafirm's development
isreferredtoasseedorstart-up,earlystage,ormezzanine financing.
Investorscanbefamily,friends,wealthyindividuals, orprivate
equityfunds.Venturecapitalinvestments areilliquid andinvestorsoftenhavetocommit
fundsforthreetoten yearsbeforetheycancashout (exit)theirinvestment.
Investorshopetoprofitwhenthey canselltheirsharesafter(oraspart of)aninitialpublic
offeringortoanestablished firm.
Inaleveraged buyout (LBO), investorsbuyallofafirm'sequity usingdebtfinancing
(leverage).Ifthebuyersarethefirm'scurrent management, theLBOis referredtoasa
managementbuyout (MBO). FirmsinLBOsusuallyhavecashflowthat isadequate to
servicetheissueddebtorhaveundervalued assetsthat canbesoldtopaydownthedebt overtime.
Inaprivate investmentinpublic equity (PIPE), apublic firmthat needscapitalquickly sells
privateequitytoinvestors.The firmmayhavegrowth opportunities,beindistress,
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orhavelargeamounts ofdebt.The investorscanoftenbuythestockatasizeable discount
toitsmarketprice.
When capitalflows freelyacrossborders, marketsaresaidtobeintegrated.Theworld's
financialmarkets havebecomemoreintegrated overtime, especiallyasaresultof improved
communications andtrading technologies. However,barrierstoglobalcapital
flowsstillexist.Somecountries restrict foreignownership oftheirdomestic stocks, primarily
toprevent foreigncontrol ofdomestic companies andtoreducethevariability
ofcapitalflowsinandoutoftheircountries.
Anincreasing number ofcountries havedroppedforeigncapitalrestrictions. Studies
haveshownthat reducing capitalbarriersimprovesequity market performance. Furthermore,
companies areincreasingly turning toforeigninvestorsforcapitalby
listingtheirstocksonforeignstockexchangesorbyencouraging foreignownership of shares.
Fromthefirm'sperspective, listingonforeignstockexchangesincreasespublicity forthe
firm'sproducts andtheliquidityofthefirm'sshares.Foreignlistingalsoincreasesfirm transparency
duetothestricter disclosurerequirements ofmanyforeignmarkets.
Direct investing inthesecuritiesofforeigncompanies simplyreferstobuying aforeign
firm'ssecuritiesinforeignmarkets. Someobstaclestodirectforeigninvestment arethat:
Theinvestment andreturn aredenominatedinaforeigncurrency.
Theforeignstockexchangemaybeilliquid.
Thereportingrequirements offoreignstockexchangesmaybeless strict,impeding
analysis.
Investors mustbefamiliarwith theregulations andprocedures ofeachmarket in which
theyinvest.
Other methods forinvesting inforeigncompanies areprovided byglobaldepository receipts
(GDRs), American depository receipts (ADRs),globalregisteredshares(GRSs),
andbasketsoflisted depository receipts (BLDRs).
Depositoryreceipts (DRs)represent ownership inaforeignfirmandaretraded inthe markets
ofother countries inlocalmarket currencies. Abank depositssharesofthe foreignfirmandthen
issuesreceiptsrepresenting ownership ofaspecificnumberofthe foreignshares.The
depositorybank actsasacustodian andmanagesdividends, stock splits,andother
events.Although theinvestordoesnothavetoconverttotheforeign
currency,thevalueoftheDRisaffectedbyexchangeratechanges,aswellasfirm fundamentals,
economic events,andanyother factorsthat affectthevalueofanystock.
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Ifthefirmisinvolvedwiththeissue,thedepository receiptisasponsored DR;
otherwise,itisanunsponsoredDR.Asponsored DRprovidestheinvestorvoting rights
andisusuallysubject togreaterdisclosurerequirements.Inanunsponsored DR, the depository
bankretainsthevoting rights.
Global depositoryreceipts (GDRs) areissuedoutside theUnited Statesandtheissuer's
homecountry. MostGDRs aretraded ontheLondon andLuxembourg exchanges. Although
notlistedonU.S.exchanges,theyareusuallydenominatedinU.S.dollarsandcanbesoldtoU.S.instit
utionalinvestors. GDRs arenotsubjecttothecapitalflow restrictions imposed bygovernments
andthusofferthefirmandtheinvestorgreater opportunitiesforforeigninvestment. The
firmusuallychoosestolisttheGDR ina marketwheremanyinvestorsarefamiliarwith thefirm.
American depositoryreceipts (ADRs)aredenominatedinU.S.dollarsandtradeinthe United
States.The securityonwhichtheADR isbasedistheAmerican depositoryshare
(ADS),whichtradesinthefirm'sdomestic market. SomeADRsallowfirmstoraise
capitalintheUnited Statesorusethesharestoacquireother firms.MostrequireU.S.
SecuritiesandExchangeCommission (SEC)registration, butsomeareprivatelyplaced
(Rule144AorRegulation S receipts).
ThefourtypesofADRs,with different levelsoftrading availabilityandfirm requirements,
aresummarized inFigure1.
Figure 1: Types of ADRs
Level I Level II Level III Rule 144A
Trading location Over-the-
counter (OTC)
NYSE, Nasdaq,
and AMEX
NYSE, Nasdaq,
and AMEX
Private
SEC registration
required
Yes
Yes
Yes
No
Ability to raise
capical in
United States
No No Yes
Yes
Firm listing
expenses
Low High High Low
Global registered shares (GRS)aretraded indifferent currencies onstockexchanges around
theworld.
Abasket oflisted depositoryreceipts (BLDR)isanexchange-tradedfund (ETF) that is
acollection ofDRs.ETFsharestradeinmarketsjustlikecommon stocks.
The returns onequity investments consistofpricechanges,dividend payments, and,in
thecaseofequities denominatedinaforeigncurrency,gainsorlossesfromchangesin
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exchangerates.AJapaneseinvestorwhoinvestsineuro-denorninated shareswillhave
greateryen-based returns iftheeuroappreciates relativetotheyen.
Gainsfromdividends andthereinvestment ofdividends havebeenanimportantpart
ofequityinvestors' long-term returns. Forexample,$1investedinU.S.stocksin1900
wouldhavebeenworth $834 inrealtermsin2011with dividends reinvestedbut only$8.10
withpriceappreciation alone.Overthesametimeperiod, theterminal wealth for bonds
andbillswouldhavebeen$9.30and$2.80, respectively.
The riskofequitysecuritiesismostcommonly measured asthestandard deviation of returns.
Preferredstockislessriskythan common stockbecausepreferred stockpaysa known,
fixeddividend toinvestorsthat isalargepartofthereturn, whereascommon dividends
arevariableandcanvarywith earnings.Also,preferred stockholders receive
theirdistributionsbeforecommon shareholders andhaveaclaiminliquidationequalto
theparvalueoftheirsharesthathaspriority overtheclaimsofcommon stockowners.
Becauseitislessrisky,preferred stockhasaloweraveragereturn than common stock.
Cumulative preferred shareshavelessriskthan non-cumulativepreferred sharesbecause
theyretaintherighttoreceiveanymisseddividends beforeanycommon stockdividends canbepaid.
Forboth common andpreferred shares,putable sharesarelessriskyandcallableshares
aremoreriskycompared toshareswith neither option. Putablesharesarelessrisky
becauseifthemarket pricedrops, theinvestorcanput thesharesbacktothefirmata
fixedprice(assuming thefirmhasthecapitaltohonor theput).Becauseofthisfeature, putable
sharesusuallypayalowerdividend yieldthan non-putableshares.
Callablesharesarethemostriskybecauseifthemarket pricerises,thefirmcancallthe shares,limiting
theupsidepotentialoftheshares.Callableshares,therefore,usuallyhave higher dividend
yieldsthan non-callable shares.
Equity capitalisusedforthepurchase oflong-term assets,equipment, researchand development,
andexpansion intonewbusinessesorgeographic areas.Equity securities provide thefirmwith
"currency"that canbeusedtobuyother companies orthat canbe offeredtoemployeesasincentive
compensation. Having publicly traded equitysecurities providesliquidity,
whichmaybeespeciallyimportanttofirmsthat needtomeet regulatory requirements,
capitaladequacyratios,andliquidity ratios.
Theprimary goaloffirmmanagement istoincreasethebookvalueofthefirm'sequity andthereby
increasethemarketvalueofitsequity.Thebookvalueofequity isthevalue
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ofthefirm'sassetsonthebalancesheetminus itsliabilities.
Itincreaseswhenthefirmhaspositivenetincome andretained earnings
thatflowintotheequityaccount. Whenmanagement makesdecisionsthat increaseincome
andretained earnings, theyincrease thebookvalueofequity.
Themarket valueofequity
isthetotalvalueofafirm'soutstandingequitysharesbasedonmarketpricesandreflectstheexpectati
ons ofinvestorsabout thefirm'sfuture performance. Investors usetheirperceptions
ofthefirm'sriskandtheamounts and timing offuture cashflowstodetermine
themarketvalueofequity.Themarket value andbookvalueofequityareseldomequal.Although
management maybemaximizing
thebookvalueofequity,thismaynotbereflectedinthemarketvalueofequitybecause
bookvaluedoesnotreflectinvestor expectations about future firmperformance.
Akeyratiousedtodetermine management efficiencyistheaccounting return on
equity,usuallyreferredtosimplyasthereturn onequity (ROE).ROEiscalculated as netincome
availabletocommon (netincome minus preferred dividends) dividedbythe
averagebookvalueofcommon equity overtheperiod:
Alternatively, ROEisoftencalculated usingonlybeginning-of-yearbookvalueofequity
(i.e.,bookvalueofequityforendofyeart- 1):
Thefirstmethod ismoreappropriate whenitistheindustryconvention orwhenbook
valueisvolatile.Thelattermethod ismoreappropriate when examining ROEfora number
ofyearsorwhenbookvalueisstable.
Higher ROEisgenerallyviewedasapositiveforafirm,butthereasonforanincrease should
beexamined.Forexample,ifbookvalueisdecreasingmorerapidlythan net income,
ROEwillincrease.This isnot,however,apositiveforthefirm.Afirmcanalso issuedebttorepurchase
equity,therebydecreasingthebookvalueofequity.Thiswould
increasetheROEbutalsomakethefirm'ssharesriskierduetotheincreasedfinancial leverage(debt).
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Thebookvalueofequity reflectsafirm'sfinancialdecisionsandoperating resultssince itsinception,
whereasthemarket valueofequityreflectsthemarket's consensusviewofafirm's future
performance. The price-to-book ratio (also called the market-to-book ratio)isthe
market value ofafirm's equity divided bythe book value ofitsequity. Themoreoptimistic
investors are about the firm's future growth, the greater itsprice-to-bookratio.The price-
to-book ratio isused asameasure of relative value. Often, firms withlow price-to-book
ratios are considered valuestocks,whilefirmswithhighprice-to-bookratiosareconsidered
growthstocks.
Investors'RequiredReturn andtheCostofEquity
Afirm'scostofequity istheexpectedequilibrium totalreturn (including
dividends)onitssharesinthemarket. Itisusuallyestimated inpractice usingadividend-discount
modelorthecapitalassetpricing model.Atanypoint intime,
adecreaseinsharepricewillincreasetheexpectedreturn
onthesharesandanincreaseinsharepricewilldecreaseexpectedreturns, other things
equal.Becausetheintrinsic valueofafirm's sharesisthediscounted presentvalueofitsfuture
cashflows,anincrease(decrease)in therequired return usedtodiscountfuture
cashflowswilldecrease(increase)intrinsic value.
Investorsalsoestimate theexpectedmarket returns onequitysharesandcompare thisto
theminimumreturn theywillacceptforbearing theriskinherentinaparticular stock.
Ifaninvestor estimates theexpectedreturn onastocktobegreaterthanherminimum required
rateofreturn ontheshares,giventheir risk,then thesharesareanattractive investment. Investors
canhavedifferent required ratesofreturn foragivenrisk, different estimates ofafirm'sfuture
cashflows,anddifferent estimates oftheriskofa firm'sequityshares.Afirm'scostofequity
canbeinterpretedastheminimumrateof return required byinvestors
(intheaggregate)tocompensate them fortheriskofthe firm'sequityshares.
3.2 Introduction to industry and company analysis
Industryanalysisisimportantforcompany analysisbecauseitprovidesaframework for
understandingthefirm.Analystswilloftenfocusonagroup ofspecificindustries sothat
theycanbetter understand thebusinessconditions thefirmsinthoseindustries face.
Understandingafirm'sbusinessenvironment canprovideinsight about thefirm's
potentialgrowth, competition,andrisks.Foracreditanalyst,industryconditions can provide
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importantinformationaboutwhether afirmwillbeabletomeetitsobligations during
thenextrecession.
Inanactivemanagement strategy,industryanalysiscanidentify industries that are undervalued
orovervaluedinordertoweightthemappropriately. Someinvestorsengage
inindustryrotation,which isoverweighting orunderweightingindustries basedonthe current
phaseofthebusinesscycle. Afirm'sindustryhasbeenfound tobeasimportant asitshome country
indeterminingitsperformance.
Inperformance attributionanalysis,thesourcesofportfolio return aredetermined
relativetoabenchmark. The industryrepresentation within aportfolio isoftena significant
componentofattributionanalysis.
Onewaytogroup companies intoanindustryisbytheproductsandservicestheyoffer.
Forexample,thefirmsthatproduce automobiles constitutetheautoindustry.Asectorisagroup
ofsimilarindustries. Hospitals, doctors, pharmaceutical firms,andother industries areincluded
inthehealth caresector.Systemsthat aregrouped byproducts
andservicesusuallyuseafirm'sprincipalbusiness activity (thelargestsourceofsales orearnings)
toclassifyfirms.Examplesofthesesystemsarediscussedinthefollowingandinclude
theGlobalIndustryClassification Standard (GICS),
RussellGlobalSectors(RGS),andIndustryClassification Benchmark.
Firmscanalsobeclassifiedbytheirsensitivitytobusinesscycles.Thissystemhastwomain
classifications:cyclicalandnon-cyclical firms.
Statisticalmethods,suchasclusteranalysis,canalsobeused.This method groupsfirms
thathistorically havehadhighlycorrelated returns. The groups (i.e.,industries) formed
willthenhavelowerreturns correlations between groups.
Thismethod hasseverallimitations:
Historical correlations maynotbethesameasfuture correlations.
The groupings offirmsmaydifferovertimeandacrosscountries.
The grouping offirmsissometimes non-intuitive.
The method issusceptible tostatistical error (i.e., firmscanbegrouped bya relationship
that occursbychance, ornotgrouped together when theyshould be).
Acyclicalfirmisonewhoseearnings arehighlydependentonthestageofthebusiness cycle.These
firmshavehighearningsvolatility andhighoperating leverage.Their products
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areoftenexpensive,non-necessitieswhosepurchase canbedelayeduntiltheeconomy improves.
Examplesofcyclicalindustries include basicmaterials and processing, consumer discretionary,
energy,financialservices,industrial andproducer durables, andtechnology.
Incontrast, anon-cyclical firmproduces goodsandservicesforwhich demand is
relativelystableoverthebusinesscycle.Examplesofnon-cyclical industries include health
care,utilities, telecommunications, andconsumer staples.
Sectorscanalsobeclassifiedbytheirsensitivity tothephaseofthebusinesscycle.
Cyclicalsectorexamplesinclude energy,financials, technology, materials, andconsumer
discretionary. Non-cyclical sectorexamplesinclude health care,utilities, andconsumer staples.
Non-cyclical industries canbefurther separated into defensive(stable)orgrowth industries.
Defensive industriesarethosethat areleastaffectedbythestageofthe businesscycleandinclude
utilities, consumer staples(suchasfoodproducers), andbasic
services(suchasdrugstores).Growthindustrieshavedemand sostrong theyarelargely
unaffected bythestageofthebusinesscycle.
Descriptors suchas"growth," "defensive,"and"cyclical"should beusedwithcaution.
Cyclicalindustries, which aresupposed tobedependentonthebusinesscycle,often include
growth firmsthat arelessdependentonthebusinesscycle.Non-cyclical
industriescanbeaffectedbysevererecessions,aswasthecaseinthe2008-09downturn.
Defensiveindustries maynotalwaysbesafeinvestments.
Forexample,grocerystoresareclassifiedasdefensive,buttheyaresubject tointense
pricecompetitionthat reducesearnings. Defensiveindustries mayalsocontain
sometrulydefensiveandsomegrowth firms.Becausebusinesscyclephasesdifferacrosscountries
andregions,twocyclical firmsoperating indifferent countries
maybesimultaneouslyexperiencing different cyclicaleffectsonearningsgrowth.
Apeergroup isa setofsimilarcompanies ananalystwilluseforvaluation comparisons.
Morespecifically,a peergroupwillconsistofcompanies withsimilarbusinessactivities, demand
drivers,coststructuredrivers,andavailabilityofcapital.
Toformapeergroup, ananalystwilloftenstartbyidentifying companies
inthesameindustryclassification, usingthecommercial classificationproviderspreviously
described. Usually,theanalystwilluseother informationtoverifythat thefirmsinan
industryareindeed peers.Ananalystmight include acompany inmorethan onepeer group.
Thefollowingarestepsananalystwould usetoformapeergroup:
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Usecommercial classificationproviders todetermine whichfirmsareinthesame industry.
Examine firms'annual reports toseeiftheyidentify keycompetitors.
Examine competitors' annual reports toseeifother competitors arenamed.
Useindustrytradepublications toidentify competitors.
Confirm that comparable firmshavesimilarsourcesofsalesandearnings, have
similarsourcesofdemand, andareinsimilargeographic markets.
Adjust financialstatements ofnon-financial companies foranyfinancing subsidiary
datatheyinclude.
Athoroughindustryanalysisshould include thefollowingelements:
Evaluatetherelationships between macroeconomicvariablesandindustrytrends
usinginformationfromindustrygroups, firmsintheindustry, competitors, suppliers,
andcustomers.
Estimate industryvariablesusingdifferent approaches andscenarios.
Compare with other analysts'forecastsofindustryvariablestoconfirm thevalidity
oftheanalysisandpotentially findindustries that aremisvalued asaresultof
consensusforecasts.
Determine therelativevaluation ofdifferent industries.
Compare thevaluations ofindustries acrosstimetodetermine thevolatility oftheir
performance overthelongrun andduring different phasesofthebusinesscycle.
Thisisusefulforlong-term investing aswellasshort-termindustryrotationbased
onthecurrent economic environment.
Analyzeindustryprospects basedonstrategic groups, which aregroupsoffirmsthat
aredistinct fromtherestoftheindustryduetothedeliveryorcomplexity oftheir products
orbarrierstoentry.Forexample,full-servicehotelsareadistinct market segmentwithin
thehotelindustry.
Classifyindustries bylife-cyclestage,whetheritisembryonic, growth, shakeout, mature,
ordeclining.
Position theindustryontheexperience curve,whichshowsthecostperunit relative
tooutput. Thecurvedeclinesbecauseofincreasesinproductivityandeconomies of
scale,especiallyinindustries withhighfixedcosts.
Consider theforcesthat affectindustries, which include demographic,
macroeconomic,governmental, social,andtechnological influences.
Examine theforcesthat determine competition within anindustry.
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Industries differmarkedly inprofitability becauseofdifferencesineconomic fundamentals,
industrystructure, anddegreeofcompetition.Insomeindustries, competition isintense
andfewfirmsearneconomic profits.Economic profits, thereturn oninvestedcapitalminus
itscost,aregreaterthan 20%insomeindustries andnegative inothers.The degreeofeconomic
profitsdepends inpart onpricing power(elasticityof demand forthefirm'sproducts).
Ananalystshould understandthat industryconditions andprofitscanchangedramatically
overtime,soindustryanalysisshould beforward-looking.
One componentofananalyst'sindustryanalysisshould bestrategicanalysis,which
examineshowanindustry's competitiveenvironmentinfluencesafirm'sstrategy.The
analysisframework developed byMichael Porterdelineates fiveforcesthat determine
industrycompetition.
1. Rivalryamongexistingcompetitors.Rivalryincreaseswhen manyfirmsofrelatively
equalsizecompetewithin anindustry. Slowgrowth leadstocompetitionasfirms fightformarket
share,andhighfixedcostsleadtopricedecreasesasfirmstryto operate
atfullcapacity.Forexample,thehighfixedcostsintheautoindustryfrom capital investments
andlaborcontracts forcefirmstoproducealargenumberof vehiclesthat
theycanonlysellatlowmargins. Industrieswithproductsthat are
undifferentiatedorhavebarriers (arecostly)toexittend tohavehighlevelsof competition.
2. Threatofnewentrants.Industriesthat havesignificant barriers toentry (e.g.,large
capitaloutlaysforfacilities)willfinditeasiertomaintainpremiumpricing. Itis
costlytoenterthesteeloroilproductionindustries.Those industrieshavelarge barriers
toentryandthuslesscompetitionfromnewcomers.Ananalystshould identifyfactorsthat
discourage newentrants,suchaseconomies ofscale.
3. Threatofsubstitute products.Substituteproductslimit theprofitpotentialofan
industrybecausetheylimit thepricesfirmscanchargebyincreasing theelasticityof
demand.Commodity-likeproductshavehighlevelsofcompetitionandlowprofit
margins.Themoredifferentiatedtheproductsarewithin anindustry,theless price
competitiontherewillbe.Forexample,inthepharmaceuticalindustry,patents protect
aproducerfromcompetitioninthemarkets forpatenteddrugs.
4. Bargainingpowerofbuyers.Buyers'abilitytobargain forlowerpricesorhigher quality
influencesindustryprofitability. Bargaining bygovernments andever-larger health
careprovidershaveput downward pressureevenonpatenteddrugs.
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5. Bargainingpowerofsuppliers.Suppliers' abilitytoraisepricesorlimit supply influences
industryprofitability. Suppliers aremorepowerful iftherearejustafew ofthem
andtheirproductsarescarce.Forexample,Microsoftisoneofthefew suppliers
ofoperatingsystemsoftwareandthushaspricing power.
Thefirsttwoforcesdeservefurther attentionbecausealmostallfirmsmustbeconcerned about
thethreat ofnewentrantsandcompetitionthatwould erodeprofits. Studying
theseforcesalsohelpstheanalystbetter understandthesubject firm'scompetitorsandprospects.
Thefollowingsummarydescribeshowthesetwofactorsinfluence the
competitiveenvironmentinanindustry:
Higher barriers toentry reducecompetition.
Greater concentration(asmallnumberoffirmscontrol alargepartofthemarket)
reducescompetition, whereasmarket fragmentation(alargenumberoffirms,each with
asmallmarket share)increasescompetition.
Unusedcapacityinanindustry, especiallyifprolonged,resultsinintense price
competition.Forexample,underutilizedcapacityintheautoindustryhasresulted in
verycompetitivepricing.
Morepricesensitivity incustomer buying decisionsresultsingreatercompetition.
Greater maturityofanindustryresultsinslowinggrowth.
BarrierstoEntry
Highbarrierstoentrybenefitexistingindustry firmsbecausetheyprevent new competitors
fromcompeting formarket shareandreducing theexistingfirms'return oncapital. Inindustries
with lowbarriers toentry,firmshavelittlepricing powerand
competitionreducesexistingfirms'return oncapital.Toassesstheeaseofentry,the analystshould
determine howeasilyanewentrant totheindustrycould obtain thecapital,intellectual property,
andcustomer baseneeded tobesuccessful.Onemethod ofdetermining theeaseofentry
istoexaminethecomposition oftheindustryovertime.Ifthesamefirmsdominate
theindustrytodayastenyearsago,entry isprobably difficult.
Highbarrierstoentrydonotnecessarilymeanfirmpricing powerishigh.Industries
withhighbarrierstoentrymayhavestrong competitionamongexistingfirms.This is
morelikelywhentheproducts soldareundifferentiatedandcommodity-likeorwhen
highbarrierstoexitresultinovercapacity.Forexample,anautomobile factorymayhave
alowvalueinanalternative use,making firmownersless likelytoexittheindustry.They continue
tooperate evenwhenlosingmoney,hoping toturn things around,
whichcanresultinindustryovercapacityandintense pricecompetition.
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Lowbarrierstoentrydonotensuresuccessfornewentrants. Barrierstoentry may
changeovertime,andsomight thecompetitive environment.
IndustryConcentration
High industryconcentrationdoesnotguarantee pricing power.
Absolute market sharemaynotmatter asmuch asafirm'smarket
sharerelativetoitscompetitors. Afirmmayhavea50%marketshare,but
ifasinglecompetitorhas theother 50%, their 50%sharewould
notresultinagreatdegreeofpricing power. Return oncapitalislimited byintense
competition betweenthetwofirms.
Conversely,afirmthat hasa10%market sharewhennocompetitorhasmorethan
2%mayhaveagooddegreeofpricing powerandhigh return oncapital.
Ifindustryproducts areundifferentiatedandcommodity-like,then consumers will
switchtothelowest-pricedproducer. The moreimportance consumers placeon
price,thegreaterthecompetitioninanindustry. Greater competitionleadstolower
return oncapital.
Industries withgreaterproductdifferentiation inregardtofeatures,reliability,and
serviceafterthesalewillhavegreaterpricing power.Return oncapitalcanbehigher
forfirmsthat canbetter differentiate theirproducts.
Iftheindustryiscapitalintensive, andtherefore costlytoenterorexit,overcapacity
canresultinintensepricecompetition.
Tobacco, alcohol, andconfections areexamplesofhighlyconcentrated industries in which
firms'pricing powerisrelativelystrong.Automobiles, aircraft, andoilrefiningare
examplesofhighlyconcentratedindustries with relativelyweakpricing power.
Although industryconcentrationdoesnotguarantee pricing power,afragmented market
doesusuallyresultinstrong competition. When therearemanyindustrymembers, firms cannot
coordinate pricing, firmswillactindependently, andbecauseeachmember has
suchasmallmarket share,anyincremental increaseinmarket sharemaymakeaprice
decreaseprofitable.
IndustryCapacity
Industrycapacityhasaclearimpact onpricing power.Undercapacity,asituation in which
demand exceedssupplyatcurrent prices,resultsinpricing powerandhigher return oncapital.
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Overcapacity, with supplygreaterthan demand atcurrent prices,will resultindownward
pressureonpriceandlowerreturn oncapital.
Ananalystshould befamiliarwith theindustry's current capacityanditsplanned investment
inadditional capacity.Capacity isfixedintheshort runandvariableinthe longrun.
Inotherwords,givenenough time,producers willbuild enough factoriesandraiseenough
capitaltomeetdemand atapriceclosetominimumaveragecost.However,producers
mayovershoot theoptimal industrycapacity,especiallyincyclical markets.
Forexample,producers maystarttoordernewequipmentduring aneconomic expansion
toincreasecapacity.Bythetimetheybring theadditional productionontothemarket, theeconomy
maybeinarecessionwith decreaseddemand. Adiligent analystcanlookforsignsthat
theplannedcapacityincreasesofallproducers (whomay nottakeinto account
thecapacityincreasesofother firms)sumtomoreoutput than industrydemand willsupport.
Capacity isnotnecessarilyphysical. Forexample,anincreaseindemand forinsurance
canbemoreeasilyandquicklymetthan anincreaseindemand foraproductrequiring
physicalcapacity,suchaselectricity orrefinedpetroleum products.
Ifcapacityisphysicalandspecialized,overcapacity canexistforanextended period if producers
expand toomuch overthecourseofabusinesscycle.Specializedphysical
capacitymayhavealowliquidationvalueandbecostlytoreallocatetoadifferent product.Non-
physical capacity (e.g.,financialcapital) canbereallocated morequickly tonewindustries than
physicalcapacity.
Market ShareStability
Ananalystshould examinewhether firms'market sharesinanindustryhavebeen stable over
time. Market shares that are highly variable likely indicate a highly competitive industry
in which firms have little pricing power. More stable market shares likely indicate less
intense competition in the industry.
Factors that affect market share stability include barriers to entry, introductions of
new products and innovations, and the switching costs that customers face when
changing from one firm's products to another. Switching costs, such as the time and
expense of learning to use a competitor's product, tend to be higher for specialized or
differentiated products. High switching costs contribute to market share stability and
pricing power.
Industry life cycle analysis should be a component of an analyst's strategic analysis.
An industry's stage in the cycle has an impact on industry competition, growth, and
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profits. An industry's stage will change over time, so the analyst must monitor the
industry on an ongoing basis. The five phases of the industry life-cycle model are
illustrated in Figure 1.
Figure 1: Stages of the Industry Life Cycle
The externalinfluencesonindustrygrowth, profitability,andriskshould
beacomponentofananalyst'sstrategic analysis.Theseexternalfactorsinclude
macroeconomic,technological, demographic, governmental, andsocialinfluences.
Macroeconomicfactorscanbecyclicalorstructural(longer-term) trends, most notably
economic output asmeasured byGDP orsomeother measure. Interest ratesaffect financing
costsforfirmsandindividuals, aswellasfinancialinstitutionprofitability. Credit
availabilityaffectsconsumer andbusinessexpenditures andfunding. Inflation
affectscosts,prices,interest rates,andbusinessandconsumerconfidence. Anexampleof
astructuraleconomic factoristheeducation leveloftheworkforce.Moreeducation can
increaseworkers'productivityandrealwages,whichinturn canincreasetheirdemand
forconsumer goods.
Technology canchangeanindustrydramatically throughtheintroductionofnew
orimproved products. Computerhardware
isanexampleofanindustrythathasundergone dramatic transformation.
Radicalimprovements incircuitry were assistedbytransformations inother industries,
includingthecomputersoftwareandtelecommunications industries.
Anotherexampleofanindustrythat hasbeenchanged bytechnology isphotography,
which haslargelymovedfromfilmtodigitalmedia.
Embryonic
Mature
Shakeout
Growth
Demand
Time
Decline
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Demographicfactorsinclude agedistributionandpopulationsize,aswellasother changes
inthecomposition ofthepopulation.Asalargesegment ofthepopulationreachestheir twenties,
residential construction,furniture, andrelatedindustries seeincreaseddemand.
Anagingoftheoverallpopulationcanmeansignificant growth forthehealth care
industryanddevelopersofretirement communities. Forexample,theagingofthepost-
WorldWarIIBabyBoomersisanexampleofdemographics thatwillincreasedemand in
theseindustries.
Governmentshaveanimportantandwidespread effectonbusinessesthroughvarious channels,
including taxesandregulation. Theleveloftaxratescertainly affects industries, but
analystsshould alsobeawareofthedifferential taxation applied tosome goods.Forexample,
tobacco isheavilytaxedintheUnited States.Specificregulations applytomanyindustries. Entry
intothehealth careindustry, forexample,iscontrolledbygovernments thatlicensedoctors
andother providers. Governments canalsoempowerself-regulatory organizations,
suchasstockexchangesthat regulatetheirmembers. Some industries,
suchastheU.S.defenseindustry, depend heavilyongovernment purchasesofgoodsandservices.
Socialinfluencesrelatetohowpeoplework,play,spend
theirmoney,andconducttheirlives;thesefactorscanhavealargeimpact
onindustries.Forexample,whenwomenentered theU.S.workforce,therestaurant
industrybenefitted becausetherewaslesscooking athome.Child care,women'sclothing,
andother industries werealso dramatically affected.
Having gainedunderstandingofanindustry's external environment,
ananalystcanthenfocusoncompanyanalysis.This
involvesanalyzingthefirm'sfinancialcondition, products andservices,andcompetitivestrategy.
Competitive strategyishowafirm responds totheopportunitiesandthreats oftheexternal
environment. Thestrategymay bedefensiveoroffensive.
Porterhasidentified twoimportantcompetitive strategiesthat canbeemployed byfirmswithin
anindustry: acostleadership (low-cost) strategyoraproductorservice differentiationstrategy.
According toPorter,afirmmust decidetofocusononeofthese twoareastocompete effectively.
Inalow-coststrategy,thefirmseekstohavethelowestcostsofproductioninitsindustry,
offerthelowestprices,andgenerate enough volume tomakeasuperior return. The
strategycanbeuseddefensivelytoprotect market shareoroffensivelytogainmarket
share.Ifindustrycompetition isintense, pricing
canbeaggressiveorevenpredatory.Inpredatorypricing, thefirmhopestodriveoutcompetitors
andlaterincreaseprices.Although thereareoftenlawsprohibitingpredatory pricing,
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itcanbehardtoproveifthefirm'scostsarenoteasilytraced toaparticular product.Alow-
coststrategyfirm should havemanagerial incentives that aregearedtoward improving operating
efficiency.
Inadifferentiation strategy,thefirm'sproducts andservicesshould bedistinctive interms
oftype,quality,ordelivery.Forsuccess,thefirm'scostofdifferentiation mustbelessthan
thepricepremium buyersplaceonproductdifferentiation. Thepricepremium should
alsobesustainable overtime.Successfuldifferentiators willhaveoutstanding marketing
researchteamsandcreativepersonnel.
Acompany analysisshould include thefollowingelements:
Firmoverview,including information onoperations, governance, andstrengths and
weaknesses.
Industrycharacteristics.
Product demand.
Productcosts.
Pricingenvironment.
Financial ratios,with comparisons tootherfirmsandovertime.
Projected financialstatements andfirmvaluation.
Afirm'sreturn onequity(ROE)should bepartofthefinancialanalysis.The ROEisa function
ofprofitability, totalassetturnover, andfinancialleverage(debt).
3.3 Equity valuation: concepts and basic tools
RecallfromthetopicreviewofMarket Efficiencythat intrinsicvalueorfundamental
valueisdefinedastherational valueinvestorswould placeontheassetiftheyhadfull knowledge
oftheasset'scharacteristics. Analystsusevaluation modelstoestimate the intrinsic
valuesofstocksandcompare them tothestocks'market pricestodetermine whether individual
stocksareovervalued, undervalued, orfairlyvalued.Indoing valuation
analysisforstocks,analystsareassumingthat somestocks'pricesdeviate significantly
fromtheirintrinsic values.
Totheextent that market pricesdeviatefromintrinsic values,analystswhocanestimate
astock'sintrinsic valuebetter than themarket canearnabnormal profitsifthestock's market
pricemovestowarditsintrinsic valueovertime.There areseveralthingsto
consider,however,indecidingwhether toinvestbasedondifferencesbetween market
pricesandestimated intrinsic values.
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1.Thelargerthepercentage differencebetweenmarket pricesandestimated values,the
morelikelytheinvestoristotakeapositionbasedontheestimate ofintrinsic value.
Smalldifferencesbetween market pricesandestimates ofintrinsic valuesaretobe expected.
2.Themoreconfident theinvestor isabout theappropriatenessofthevaluation model
used,themorelikelytheinvestor istotakeaninvestment position inastockthat is identified
asovervaluedorundervalued.
3. The moreconfident theinvestorisabout theestimated inputs usedinthevaluation model,
themorelikelytheinvestoristotakeaninvestment position inastockthatisidentified
asovervaluedorundervalued. Analystsmustalsoconsider thesensitivity
ofamodelvaluetoeachofitsinputs indecidingwhether toactonadifference between
modelvaluesandmarket prices.Ifadecreaseofone-halfpercent inthelong-term growth
rateusedinthevaluation modelwould produce anestimated valueequaltothemarket
price,ananalystwouldhavetobequitesureofthe model'sgrowth estimate totakeaposition
inthestockbasedonitsestimated value.
4. Evenif weassumethat market pricessometimes deviatefromintrinsic values, market
pricesmustbetreated asfairlyreliableindications ofintrinsic value. Investorsmustconsider
whyastockismispriced inthemarket. Investorsmaybe moreconfident about estimates
ofvaluethat differfrommarket priceswhenfew analystsfollowaparticular security.
5. Finally,totakeapositioninastockidentified asmispriced inthemarket, an investormust
believethat themarket pricewillactuallymovetoward (andcertainly
notawayfrom)itsestimated intrinsic valueandthat itwilldosotoasignificant extentwithin
theinvestment timehorizon.
Analystsuseavarietyofmodelsto estimate thevalueofequities. Usually,ananalystwill
usemorethan onemodelwith severaldifferent setsofinputs todetermine arangeof
possiblestockvalues.
Indiscountedcashflowmodels (orpresent valuemodels),
astock'svalueisestimatedasthepresentvalueofcashdistributedtoshareholders
(dividenddiscountmodels)orthe presentvalueofcashavailabletoshareholders
afterthefirmmeetsitsnecessarycapital expenditures andworking capitalexpenses(free cashflow
to equity models).
There aretwobasictypesofmultipliermodels (ormarket multiplemodels) that
canbeusedtoestimate intrinsic values.Inthefirsttype,theratioofstockpricetosuch fundamentals
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asearnings, sales,bookvalue,orcashflowpershareisusedtodetermine if astockisfairlyvalued.
Forexample,thepricetoearnings (P/E)ratioisfrequently used byanalysts.
Thesecondtypeofmultiplier model isbasedontheratioofenterprisevaluetoeither
earningsbeforeinterest, taxes,depreciation, andamortization (EBITDA) orrevenue. Enterprise
valueisthemarket valueofallafirm'soutstandingsecuritiesminus cashand short-
terminvestments. Commonstockvaluecanbeestimated bysubtracting thevalue ofliabilities
andpreferred stockfromanestimate ofenterprise value.
Inasset-based models, theintrinsic valueofcommon stockisestimated astotalasset valueminus
liabilitiesandpreferred stock.Analyststypicallyadjust thebookvaluesof
thefirm'sassetsandliabilities totheirfairvalueswhenestimating themarket valueofits
equitywithanasset-basedmodel.
Thedividend discountmodel (DDM) isbasedontherationale that theintrinsic value
ofstockisthepresentvalueofitsfuture dividends.
Themostgeneralformofthemodelisasfollows:
where:
V0 = current stock value
Dt = dividend at time t
ke = required rate of return on common equity
One-year holdingperiod DDM.Foraholding period ofoneyear,thevalueofthestock
todayisthepresentvalueofanydividends during theyearplusthepresentvalueofthe
expectedpriceofthestockattheendoftheyear(referredtoasitsterminalvalue).
Theone-yearholding period DDM issimply:
Example: One-period DDM valuation
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Calculate the value of a stock that paid a $1 dividend last year, if next year’s dividend
will be 5% higher and the stock will sell for $13.45 at year-end. The required return is
13.2%.
Answer:
The next dividend is the current dividend increased by the estimated growth rate. In this
case, we have:
The present value of the expected future cash flows is:
.
The current value based on the investor’s expectations is:
Multiple-year holding period DOM.With amultiple-year holding period, wesimply
sumthepresentvaluesoftheestimated dividends overtheholding period andthe estimated
terminal value.
Foratwo-yearholding period, wehave:
Example: Multiple-period DDM valuation
A stock recently paid a dividend of $1.00 which is expected to grow at 5% per year. The
required rate of return of 13.2%. Calculate the value of this stock assuming that it will be
priced at $14.12 two years from now.
Answer:
Find the PV of the future dividends:
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Find the PV of the future price:
Add the present values. The current value based on the investor’s expectations is
$1.79 + $11.02 = $12.81.
The mostgeneralformoftheDOM usesaninfiniteholding period becausea corporation
hasanindefinite life.Inaninfinite-period DDM model, thepresentvalue ofallexpectedfuture
dividends iscalculated andthereisnoexplicitterminal valuefor thestock.Inpractice,
aswewillsee,aterminal valuecanbecalculated atatimeinthe future afterwhichthegrowth
rateofdividends isexpectedtobeconstant.
Freecashflowtoequity (FCFE) isoftenusedindiscounted cashflowmodelsinstead of dividends
becauseitrepresents thepotential amount ofcashthat couldbepaidouttocommon shareholders.
That is,FCFE reflectsthefirm'scapacitytopaydividends. FCFEisalsousefulforfirmsthat
donotcurrently paydividends.
FCFE isdefinedasthecashremaining afterafirmmeetsallofitsdebtobligations
andprovidesforthecapitalexpenditures necessarytomaintainexistingassetsandto purchase
thenewassetsneeded tosupport theassumedgrowth ofthefirm.Inother words, itis
thecashavailabletothefirm'sequityholders afterafirmmeetsallofits other obligations.
FCFEforaperiod isoftencalculated as:
FCFE = netincome + depreciation - increaseinworking capital- fixedcapital investment
(FClnv) - debtprincipal repayments + newdebtissues
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FCFE canalsobecalculated as:
FCFE = cashflowfromoperations - FCinv +netborrowing
Inthesecondformula, net borrowingistheincreaseindebtduring theperiod (i.e., amount
borrowed minus amount repaid) andisassumedtobeavailabletoshareholders.
Fixedcapitalinvestment must besubtracted becausethefirmmust investinassetsto
sustainitself.FCFE isprojected forfuture periods usingthefirm'sfinancialstatements.
Restating thegeneralformoftheDDM intermsof FCFE,wehave:
Estimating theRequired Returnfor Equity
The capital asset pricing model (CAPM) provides an estimate of the required rate of return
( ) for security i as a function of its systematic risk ( , the risk-free rate (Rf), and the
expected return on the market [E(Rmkt)] as:
There issomecontroversy overwhether theCAPM isthebestmodeltocalculatethe required
return onequity.Also,different analystswilllikelyusedifferent inputs, sothere isnosinglenumber
that iscorrect.
RecallfromthetopicreviewofCostofCapital that forfirmswithpublicly traded debt, analystsoften
estimate therequired return onthefirm'scommon equitybyadding arisk premium
tothefirm'scurrent bondyield.Ifthefirmdoesnothavepublicly traded debt,
ananalystcanaddalargerriskpremium toagovernment bond yield.
Preferred stockpaysadividend that isusuallyfixedandusuallyhasanindefinite maturity. When
thedividend isfixedandthestreamofdividends isinfinite, theinfinite period dividend discount
model reducestoasimpleratio:
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Example: Preferred stock valuation
A company’s $100 par preferred stock pays a $5.00 annual dividend and has a required return
of 8%. Calculate the value of the preferred stock.
Answer:
Value of the preferred stock: Dp / kp = $5.00 / 0.08 = $62.50
In the previous example, if the dividends were paid semiannually and the preferred stock
had a maturity of one year, we would use a formula similar to the one we examined earlier
for common stock. Instead of the price, we would use the par value (F) paid by the firm.
Instead of the required return on common, we would use the required return on preferred:
With a1-year maturity, therearetwosemiannual dividends of$2.50remaining, and
witharequired semiannual return of4%wehave:
The Gordon growth model (or constant growth model) assumes the annual growth rate of
dividends, gc, is constant. Hence, next period's dividend, D1, is D0(1 + g), the second
year's dividend, D2, is D0(1 + g)2, and so on. The extended equation using this
assumption gives the present value of the expected future dividends (V0) as:
When thegrowth rateofdividends isconstant, thisequation simplifiestotheGordon(constant)
growth model:
The assumptions oftheGordon growth modelare:
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Dividends aretheappropriate measureofshareholder wealth.
The constant dividend growth rate, gc, and required return on stock, ke, are never
expected to change.
ke must be greater than gc. If not, the math will not work.
Ifanyoneoftheseassumptions isnotmet,themodel isnotappropriate.
Example: Gordon growth model valuation
Calculate the value of a stock that paid a $2 dividend last year, if dividends are
expected to grow at 5% forever and the required return on equity is 12%.
Answer:
Determine D1: D0(l + gc) = $2(1.05) = $2.10
Calculate the stock’s value = D1 / (ke – gc)
= $2.10 / (0.12 - 0.05)
= $30.00
This exampledemonstratesthat thestock'svalueisdetermined bytherelationship between
theinvestor's required rate of return on equity, ke, and the projected growth rate of
dividends, gc:
As the difference between ke; and gc widens, the value of the stock falls.
As the difference narrows, the value of the stock rises.
Small changes in the difference between ke and gc can cause large changes in the
stock's value.
Becausetheestimated stockvalueisverysensitivetothedenominator,ananalystshould
calculateseveraldifferent valueestimates usingarangeofrequired returns andgrowth rates.
AnanalystcanalsousetheGordon growth model todetermine howmuch ofthe estimated
stockvalueisduetodividend growth.Todothis,assumethegrowth rateis
zeroandcalculateavalue.Then, subtract thisvaluefromthestockvalueestimated using
apositivegrowth rate.
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Example: Amount of estimated stock value due to dividend growth
Using the data from the previous example, calculate how much of the estimated stock value is
due to dividend growth.
Answer:
The estimated stock value with a growth rate of zero is:
The amount of the estimated stock value due to estimated dividend growth is:
EstimatingtheGrowthRateinDividends
Toestimate thegrowth rateindividends, theanalystcanusethreemethods:
1. Usethehistorical growth individends forthefirm.
2. Usethemedian industrydividend growth rate.
3. Estimate thesustainable growth rate.
Thesustainable growth rate istherateatwhichequity,earnings, anddividends can continue
togrowindefinitely assuming that ROEisconstant, thedividend payout ratio isconstant,
andnonewequityissold.
sustainable growth= (1 - dividend payout ratio) x ROE
Thequantity (1 - dividendpayout ratio) is also referredtoastheretentionrate, the
proportionofnetincome that isnotpaidoutasdividends andgoestoretained earnings,
thusincreasing equity.
Example: Sustainable growth rate
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Green, Inc., is expected to pay dividends equal to 25% of earnings. Green’s ROE is
21%. Calculate and interpre its sustainable growth rate.
Answer:
With long-run economic growth typically in the single digits, it is unlikely that a firm
could sustain 15.75% growth forever. The analyst should also examine the growth
rate for the industry and the firm’s historical growth rate to determine whether the
estimate is reasonable.
Somefirmsdonotcurrently paydividends butareexpected tobeginpayingdividends atsomepoint
inthefuture.Afirmmaynotcurrently payadividend becauseitisin financialdistressandcannot
affordtopayoutcashorbecausethereturn thefirmcan earnbyreinvesting cashisgreaterthanwhat
stockholders couldexpecttoearnby investing dividends elsewhere.
Forthesefirms,ananalystmust estimate theamount andtiming ofthefirstdividend in
ordertousetheGordon growth model. Becausetheseparameters arehighlyuncertain,
theanalystshould checktheestimate fromtheGordon growth model againstestimates
madeusingothermodels.
Example: A firm with no current dividend
A firm currently pays no dividend but is expected to pay a dividend at the end of Year 4. Year
4 earnings are expected to be $1.64, and the firm will maintain a payout ratio of 50%.
Assuming a constant growth rate of 5% and a required rate of return of 10%, estimate the
current value of this stock.
Answer:
The first step is to find the value of the stock at the end of Year 3. Remember, P3 is
the present value of dividends in Years 4 through infinity, calculated at the end of Year 3, one
period before the first dividend is paid.
Calculate D4, the estimate of the dividend that will be paid at the end of Year 4:
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Apply the constant growth model to estimate
The second step is to calculate the current value, :
Multistage Dividend Growth Models
Afirmmaytemporarily experienceagrowth ratethatexceedstherequired rateofreturn
onthefirm'sequity,butnofirmcanmaintain thisrelationship
indefinitely.Afirmwithanextremelyhighgrowthratewillattract competition, anditsgrowth
ratewilleventuallyfall.Wemustassumethefirmwillreturn toamoresustainable rateofgrowth
atsome point inthefuture inordertocalculatethepresentvalueofexpectedfuture dividends.
Onewaytovalueadividend-paying firmthat isexperiencing temporarily
highgrowthistoaddthepresentvaluesofdividends expectedduring thehigh-growth period tothe
presentvalueoftheconstant growthvalueofthefirmattheendofthehigh-growth period.This
isreferredtoasthemultistage dividend discount model.
where
is the terminal stock value, assuming that dividends at
and beyond grow at a constant rate of gc
Stepsinusingthemultistage model:
Determine the discount rate, ke.
Project the size and duration of the high initial dividend growth rate, g*.
Estimate dividends during the high-growth period.
Estimate the constant growth rate at the end of the high-growth period, gc.
Estimate the first dividend that will grow at the constant rate.
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Use the constant growth value to calculate the stock value at the end of the high-
growth period.
Add the PVs of all dividends to the PV of the terminal value of the stock.
Example: Multistage growth
Consider a stock with dividends that are expected to grow at 20% per year for four
years, after which they are expected to grow at 5% per year, indefinitely. The last
dividend paid was $1.00, and ke = 10%. Calculate the value of this stock using the
multistage growth model.
Answer:
Calculate the dividends over the high-growth period:
Although we increase D3 by the high growth rate of 20% to get D4, D4 will grow at
the constant growth rate of 5% for the foreseeable future. This property of D4 allows
us to use the constant growth model formula with D4 to get P3, a time = 3 value for
all the (infinite) dividends expected from time = 4 onward.
Finally, we can sum the present values of dividends 1, 2, and 3 and of P3 to get the
present value of all the expected future dividends during both the high- and constant
growth periods:
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The Gordongrowth model usesasingleconstant growth rateofdividends andismost
appropriate forvaluingstableandmature, non-cyclical,dividend-payingfirms.
Fordividend-payingfirmswithdividends that areexpectedtogrowrapidly,slowly,or
erraticallyoversomeperiod, followedbyconstant dividend growth, someformofthe multistage
growth modelshould beemployed.The importantpoints arethat dividends must beestimable
andmustgrowataconstant rateaftersomeinitial period sothat the constant growth
modelcanbeusedtodetermine theterminal valueofthestock.Thus, wecanapplymultistage
dividend growth modelstoafirmwith highcurrent growth that will drop to a stable rate in the
future or to a firm that is temporarily losing market share and growing slowly or getting
smaller, as long as its growth is expected to stabilize to a constant rate at some point in the
future.
One variant of a multistage growth model assumes that the firm has three stages of
dividend growth, not just two. These three stages can be categorized as growth,
transition, and maturity. A 3-stage model would be suitable for firms with an initial high
growth rate, followed by a lower growth rate during a second, transitional period,
followed by the constant growth rate in the long run, such as a young firm still in the high
growth phase.
When a firm does not pay dividends, estimates of dividend payments some years in the
future are highly speculative. In this case, and in any case where future dividends cannot
be estimated with much confidence, valuation based on FCFE is appropriate as long as
growth rates of earnings can be estimated. In other cases, valuation based on price
multiples may be more appropriate.
Because the dividend discount model is very sensitive to its inputs, many investors rely on
other methods. In a price multiple approach, an analyst compares a stock's price multiple
to a benchmark value based on an index, industry group of firms, or a peer group of firms
within an industry. Common price multiples used for valuation include price-to-earnings,
price-to-cash flow, price-to-sales, and price-to-book value ratios.
Price multiples are widely used by analysts and readily available in numerous media outlets.
Price multiples are easily calculated and can be used in time series and cross sectional
comparisons. Many of these ratios have been shown to be useful for predicting stock returns,
with low multiples associated with higher future returns.
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A critique of price multiples is that they reflect only the past because historical (trailing)
data are often used in the denominator. For this reason, many practitioners use forward
(leading or prospective) values in the denominator (sales, book value, earnings, etc.). The
use of projected values can result in much different ratios. An analyst should be sure to use
price multiple calculations consistently across firms.
When we compare a price multiple, such as P/E, for a firm to those of other firms based
on market prices, we are using price multiples based on comparables. By contrast, price
multiples based on fundamentals tell us what a multiple should be based on some valuation
model and therefore are not dependent on the current market prices of other companies to
establish value.
Price multiples used for valuation include:
Price-earnings (P/E) ratio: The P/E ratio is a firm's stock price divided by earnings
per share and is widely used by analysts and cited in the press.
Price-sales (P/S) ratio: The P/S ratio is a firm's stock price divided by sales per
share.
Price-book value (P/B) ratio: The P/B ratio is a firm's stock price divided by book
value of equity per share.
Price-cash flow (P/CF) ratio: The P/CF ratio is a firm's stock price divided by cash
flow per share, where cash flow may be defined as operating cash flow or free cash
flow.
Other multiples can be used that are industry specific. For example, in the cable television
industry, stock market capitalization is compared to the number of subscribers.
Multiples Based on Fundamentals
To understand fundamental price multiples, consider the Gordon growth valuation model:
If we divide both sides of the equation by next year's projected earnings, E1, we get:
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which is the leading P/E for this stock if it is valued in the market
according to the constant growth DDM.
This P/E based on fundamentals is also referred to as a justified P/E. It is "justified"
because, assuming we have the correct inputs for D1, E1, ke, and g, the equation above will
provide a P/E ratio that is based on the present value of the future cash flows. We refer to
this as a leading P/E ratio because it is based on expected earnings next period, not on actual
earnings for the previous period, which would produce a lagging or trailing P/E ratio.
One advantage of this approach is that it makes clear how the firm's P/E ratio should be
related to its fundamentals. It illustrates that the P/E ratio is a function of:
• D1/E1 = expected dividend payout ratio.
• k = required rate of return on the stock.
• g = expected constant growth rate of dividends.
Example: P/E based on fundamentals
A firm has an expected dividend payout ratio of 60%, a required rate of return of
11%, and an expected dividend growth rate of 5%. Calculate the firm’s fundamental
(justified) leading P/E ratio.
Answer:
expected P/E ratio:
The justified P/E ratio serves as a benchmark for the price at which the stock should trade.
In the previous example, if the firm's actual P/E ratio (based on the market price and
expected earnings) was 16, the stock would be considered overvalued. If the firm's market
P/E ratio was 7, the stock would be considered undervalued.
P/E ratios based on fundamentals are very sensitive to the inputs (especially the
denominator, k - g), so the analyst should use several different sets of inputs to indicate a
range for the justified P/E.
Because we started with the equation for the constant growth DDM, the P/E ratio
calculated in this way is the P/E ratio consistent with the constant growth DDM. We can
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see from the formula that, other things equal, the P/E ratio we have defined here will
increase with (1) a higher dividend payout rate, (2) a higher growth rate, or (3) a lower
required rate of return. So, if the subject firm has a higher dividend payout ratio, higher
growth rate, and lower required return than its peers, a higher P/E ratio may be justified.
In practice, other things are not equal. An increase in the dividend payout ratio, for
example, will reduce the firm's sustainable growth rate. While higher dividends will
increase firm value, a lower growth rate will decrease firm value. This relationship is
referred to as the dividend displacement of earnings. The net effect on firm value of
increasing the dividend payout ratio is ambiguous. As intuition would suggest, firms
cannot continually increase their P/Es or market values by increasing the dividend payout
ratio. Otherwise, all firms would have 100% payout ratios.
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Example: Fundamental P/E ratio comparison
Holt Industries makes decorative items. The figures below are for Holt and its
industry.
Holt Industries Industry Average
Dividend payout ratio 25% 16%
Sales growth 7.5% 3.9%
Toral debt to equity 113% 68%
Which of these factors suggest a higher fundamental P/E ratio for Holt?
Answer:
• The higher dividend payout ratio supports Holt having a higher PIE ratio than the
industry.
• Higher growth in sales suggests that Holt will be able to increase dividends at a faster
rate, which supports Holt having a higher P/E ratio than the industry.
• The higher level of debt, however, indicates that Holt has higher risk and a higher
required return on equity, which supports Holt having a lower P/E ratio than the
industry.
Multiples Based on Comparables
Valuation based on price multiple comparables (or comps) involves using a price multiple
to evaluate whether an asset is valued properly relative to a benchmark. Common
benchmarks include the stock's historical average (a time series comparison) or similar
stocks and industry averages (a cross-sectional comparison). Comparing firms within an
industry is useful for analysts who are familiar with a particular industry. Price multiples
are readily calculated and provided by many media outlets.
The economic principle guiding this method is the law of one price, which
asserts that two identical assets should sell at the same price, or in this case, two
comparable assets should have approximately the same multiple.
The analyst should be sure that any comparables used really are comparable.
Price multiples may not be comparable across firms if the firms are different sizes,
are in different industries, or will grow at different rates. Furthermore, using P/E
ratios for cyclical firms is complicated due to their sensitivity to economic conditions. In
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this case, the P/S ratio may be favored over the P/E ratio because the sales are less volatile
than earnings due to both operating and financial leverage.
The disadvantages of using price multiples based on comparables are (1) a stock may
appear overvalued by the comparable method but undervalued by the fundamental method,
or vice versa; (2) different accounting methods can result in price multiples that are not
comparable across firms, especially internationally; and (3) price multiples for cyclical
firms may be greatly affected by economic conditions at a given point in time.
Example: Valuation using comparables
The following figures are for Renee’s Bakery. All figures except the stock price are in
millions.
Fiscal Year-End 20X3 20X2 20X1
Total stockholder’s equity
$55.60 $54.10
$52.60
Net revenues
$77.30
$73.60
$70.80
Net income
$3.20
$1.10
$0.40
Net cash flow from operations
$17.90
$15.20
$12.20
Stock price
$11.40
$14.40 $12.05
Shares outstanding
4.476
3.994
3.823
Calculate Renee’s lagging PIE, P/CF, P/S, and P/B ratios. Judge whether the firm is
undcrvalucd or overvalued using the following relevant industry averages for 20X3
and the firm’s historical trend.
Lagging Industry Ratios 20X3
Price-to-earnings 8.6
Price-to-cash flow 4.6
Price-to-salcs 1 .4
Price-to-book value 3.6
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Answer:
To calculate the lagging price multiples, first divide the relevant financial statement
items by the number of shares to get per-share amounts. Then, divide the stock price
by this figure.
For example, for the P/S ratio for 20X3, divide net revenue (net sales) by the number
of shares:
Then, divide the stock price by sales per share:
Using the net income for earnings, the net cash flow from operations for the cash
flow, and stockholder’s equity for book value, the ratios for Renee’s Bakery are:
20X3 20X2 20X1
P/E 15.9 52.3 115.2
P/CF 2.9 3.8 3.8
P/S 0.7 0.8 0.7
P/B 0.9 1.1 0.9
Comparing Renee’s Bakery’s ratios to the industry averages for 20X3, the price
multiples arc lower in all cases except for the P/E multiple. This cross-sectional
evidence suggests that Renee’s Bakery is undervalued.
The P/E ratio merits further investigation. Rcnee’s Bakery may have a higher P/E
because its earnings are depressed by high depreciation, interest expense, or taxes.
Calculating the price-EBITDA ratio would provide an alternative measure that is
unaffected by these expenses.
On a time series basis, the ratios are trending downward. This indicates that Renee’s
Bakery may be currently undervalued relative to its past valuations. We could also
calculate average price multiples for the ratios over 20X1-20X3 as a benchmark for
the current values:
Company average P/E 20X1-20X3 61.1
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Company average P/CF 20X1-20X3 3.5
Company average P/S 20X1-20X3 0.7
Company average P/B 20X1-20X3 1.0
The current P/E, P/CF, and P/B ratios are lower than their 3-year averages. This indicates that
Renec’s Bakery may be currently undervalued. It also may be the case,
however, that P/E ratios for the market as a whole have been decreasing over the
period due to systematic factors.
Enterprise value (EV) measures total company value. EV can be viewed as what it would
cost to acquire the firm:
EV= market value of common and preferred stock + market value of debt - cash and short-
term investments
Cash and short-term investments are subtracted because an acquirer's cost for a firm would
be decreased by the amount of the target's liquid assets. Although an acquirer assumes the
firm's debt, it also receives the firm's cash and short-term investments. Enterprise value is
appropriate when an analyst wants to compare the values of firms that have significant
differences in capital structure.
EBITDA (earnings before interest, taxes, depreciation, and amortization are subtracted) is
probably the most frequently used denominator for EV multiples; operating income can
also be used. Because the numerator represents total company value, it should be compared
to earnings of both debt and equity owners. An advantage of using EBITDA instead of net
income is that EBITDA is usually positive even when earnings are not. When net income
is negative, value multiples based on earnings are meaningless. A disadvantage of using
EBITDA is that it often includes non-cash revenues and expenses.
A potential problem with using enterprise value is that the market value of a firm's debt is
often not available. In this case, the analyst can use the market values of similar bonds or can
use their book values. Book value, however, may not be a good estimate of market value if
firm and market conditions have changed significantly since the bonds were issued.
Example: Calculating EV/EBITDA multiples
Daniel, Inc., is a manufacturer of small refrigerators and other appliances. The
following figures are from Daniel’s most recent financial statements except for the
market value of long-term debt, which has been estimated from financial market data.
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Stock price $30.00
Shares outstanding 300,000
Marke value of long-term debt $800,000
Book value of long-term debt $1,100,000
Book value of total debt $2,600,000
Cash and marketable securities $300,000
EBITDA $1,200,000
Calculare the EV/EBITDA multiple.
Answer:
First, we must estimate the market value of the firm’s short-term debt and liabilities.
To do so, subtract the book value of long-term debt from the book value of total
debt: $2,600,000 - $1,100,000 = $1,500,000. This is the book value of the firm’s
short-term debt. We can assume the market value of these short-term items is close
to their book value. (As we will see in the Study Session on fixed income valuation,
the market values of debt instruments approach their face values as they get close to
maturity.)
Add the market value of long-term debt to get the market value of total debt:
The market value of equity is the stock price multiplied by the number of shares:
The enterprise value of the firm is the sum of debt and equity minus cash:
EV/EBITDA = $11,000,000 / $1,200,000 = 9.2.
If the competitor or industry average EV/EBITDA is above 9.2, Daniel is relatively
undervalued, lithe competitor or industry average EV/EBITDA is below 9.2, Daniel
is relatively overvalued.
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Our third category of valuation model is asset-based models, which are based on the idea
that equity value is the market or fair value of assets minus the market or fair value of
liabilities. Because market values of firm assets are usually difficult to obtain, the analyst
typically starts with the balance sheet to determine the values of assets and liabilities. In
most cases, market values are not equal to book values. Possible approaches to valuing assets
are to value them at their depreciated values, inflation-adjusted depreciated values, or
estimated replacement values.
Applying asset-based models is especially problematic for a firm that has a large amount of
intangible assets, on or off the balance sheet. The effect of the loss of the current owners'
talents and customer relationships on forward earnings may be quite difficult to measure.
Analysts often consider asset-based model values as floor or minimum values when
significant intangibles, such as business reputation, are involved. An analyst should
consider supplementing an asset-based valuation with a more forward-looking valuation,
such as one from a discounted cash flow model.
Asset-based model valuations are most reliable when the firm has primarily tangible short-
term assets, assets with ready market values (e.g., financial or natural resource firms), or
when the firm will cease to operate and is being liquidated. Asset-based models are often
used to value private companies but may be increasingly useful for public firms as they
move toward fair value reporting on the balance sheet.
Example: Using an asset-based model for a public firm
Williams Optical is a publicly traded firm. An analyst estimates that the market value
of net fixed assets is 120% of book value. Liability and short-term asset market values are
assumed to equal their book values. The firm has 2,000 shares outstanding.
Using the selected financial results in the table, calculate the value of the firm’s net
assets on a per-share basis.
Cash $10,000
Accounts receivable $20,000
Inventories $50,000
Net fixed assets $120.000
Total assets $200,000
Accounts payable $5,000
Notes payable $30,000
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Term loans $45,000
Common stockholder equity $120.000
Total assets $200,000
Answer:
Estimate the market value of assets, adjusting the fixed assets for the analyst’s
estimates of their market values:
Determine the market value of liabilities:
Calculate the adjusted equity value:
Calculate the adjusted equity value per share:
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4 Chủ đề 4: Portfolio Management
4.1 Portfolio management overview
Theportfolioperspective referstoevaluating individual investments bytheir
contributiontotheriskandreturn ofaninvestor'sportfolio. Thealternative totaking aportfolio
perspective istoexaminetheriskandreturn ofindividual investments
inisolation.Aninvestorwhoholdsallhiswealthinasinglestockbecausehebelievesittobethebeststoc
kavailableisnottaking theportfolio perspective-hisportfolio isvery riskycompared
toholdingadiversifiedportfolio ofstocks.Modern portfolio theory concludes that
theextrariskfromholding onlyasinglesecurityisnotrewardedwith higherexpectedinvestment
returns. Conversely,diversification allowsaninvestorto reduceportfolio
riskwithoutnecessarilyreducing theportfolio's expected return.
Intheearly1950s,theresearchofProfessorHarry Markowitz provided aframework for
measuring therisk-reduction benefitsofdiversification.Usingthestandard deviation of returns
asthemeasureofinvestment risk,heinvestigated howcombining riskysecurities intoaportfolio
affectedtheportfolio's riskandexpectedreturn.One important conclusion ofhismodel isthat
unlessthereturns oftheriskyassetsareperfectly positivelycorrelated,
riskisreducedbydiversifyingacrossassets.
Inthe 1960s,professorsTreynor,Sharpe,Mossin, andLintner independently extended
thisworkintowhathasbecomeknown asmodern portfolio theory (MPT).MPT
resultsinequilibrium expected returns forsecuritiesandportfolios that arealinearfunction
ofeachsecurity'sorportfolio'smarket risk(theriskthat cannot bereduced by diversification).
Onemeasureofthebenefitsofdiversification isthediversificationratio. Itiscalculated
astheratiooftheriskofanequallyweighted portfolio ofnsecurities (measured byits standard
deviation ofreturns) totheriskofasinglesecurityselectedatrandom fromthensecurities. Note that
theexpectedreturn ofanequal-weightedportfolio isalsothe expected return
fromselectingoneofthenportfolio securitiesatrandom (thesimple
averageofexpectedsecurityreturns inboth instances). Iftheaveragestandard deviation ofreturns
forthenstocksis25%, andthestandard deviation ofreturns foranequally weighted portfolio
ofthenstocksis18%,thediversificationratiois18/25= 0.72.
While thediversification ratioprovidesaquickmeasureofthepotentialbenefitsof
diversification,anequal-weightedportfolio isnotnecessarilytheportfolio thatprovides
thegreatestreduction inrisk.Computeroptimization cancalculatetheportfolio weights
thatwillproduce thelowestportfolio risk(standard deviation ofreturns) foragiven
groupofsecurities.
Portfolio diversification worksbestwhenfinancialmarkets areoperating normally;
diversification provideslessreductionofriskduring market turmoil, suchasthecredit contagion
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of2008. During periods offinancialcrisis,correlations tendtoincrease, which
reducesthebenefitsofdiversification.
Individualinvestors saveandinvestforavarietyofreasons,including purchasing a
houseoreducating theirchildren. Inmanycountries, specialaccounts allowcitizensto
investforretirement andtodeferanytaxesoninvestment income andgainsuntilthe
fundsarewithdrawn. Defined contributionpension plansarepopular vehiclesforthese
investments. Pensionplansaredescribed laterinthistopicreview.
Manytypesofinstitutionshavelargeinvestment portfolios. Anendowmentisafund that
isdedicated toproviding financialsupport onanongoing basisforaspecific purpose.
Forexample,intheUnited States,manyuniversities havelargeendowment fundstosupport
theirprograms. Afoundationisafund established forcharitable purposes tosupport
specifictypesofactivitiesortofund researchrelatedtoaparticular
disease.Atypicalfoundation'sinvestment objective istofund theactivityorresearchon
acontinuingbasiswithoutdecreasingthereal(inflation adjusted) valueoftheportfolio
assets.Foundations andendowments typicallyhavelonginvestment horizons, highrisktolerance,
and,asidefromtheirplannedspending needs,littleneedforadditional
liquidity.
The investment objectiveofabank, simplyput, istoearnmoreonthebank'sloansand investments
than thebankpaysfordeposits ofvarioustypes.Banksseektokeeprisklow andneedadequate
liquidity tomeetinvestorwithdrawals astheyoccur.
Insurancecompanies investcustomer premiums with theobjectiveoffundingcustomer
claimsastheyoccur.Lifeinsurance companies havearelativelylong-term investment horizon,
whileproperty andcasualty(P&C) insurershaveashorter investment horizon
becauseclaimsareexpectedtoarisesoonerthan forlifeinsurers.
Investment companies manage the pooled funds ofmany investors. Mutual funds
manage these pooled funds in particular styles (e.g., index investing, growth investing,
bond investing) and restrict their investments to particular subcategories
ofinvestments (e.g., large-firm stocks, energy stocks, speculative bonds) or particular
regions (emerging market stocks, international bonds, Asian-firm stocks).
Sovereign wealth funds refer to pools ofassets owned byagovernment. For example,
theAbu Dhabi Investment Authority, asovereign wealth fund in the United Arab
Emirates funded byAbu Dhabi government surpluses, has an estimated US$627 billion
in assets.
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Figure1 provides asummary oftherisktolerance, investment horizon, liquidityneeds,
andincome objectivesfordifferent typesofinvestors.
Figure 1: Characteristics of Different Types of Investors
Investor Risk olerance Investment Horizon Liquidity Needs Income Needs
Individuals Depends on
individual
Depends on
individual
Depends on
individual
Depends on
individual
Banks Low Short High Pay interest
Endowments High Long Low Spending
level
Insurance Low Long— life
Short—P&C
High Low
Mutual funds
Depends on
fund
Depends on fund High Depends on
fund
Defined
benefit
pensions
High Long Low Depends on
age
Adefined contributionpensionplan isaretirement planinwhich thefirmcontributes
asumeachperiod totheemployee'sretirement account.
Thefirm'scontributioncanbebasedonanynumberoffactors, including
yearsofservice,theemployee'sage, compensation, profitability, orevenapercentage
oftheemployee'scontribution.Inanyevent,thefirmmakesnopromise totheemployeeregarding
thefuture valueofthe planassets.Theinvestment decisions
arelefttotheemployee,whoassumesallofthe investment risk.
Inadefined benefit pensionplan, thefirmpromises tomakeperiodic payments
toemployeesafterretirement. Thebenefitisusuallybasedontheemployee'syears
ofserviceandtheemployee'scompensation at,ornear,retirement.
Forexample,anemployeemight earnaretirement benefitof2%ofherfinalsalary
foreachyear ofservice.Consequently,
anemployeewith20yearsofserviceandafinalsalaryof$100,000, would receive$40,000
($100,000 finalsalaryx2%x 20yearsofservice) eachyearupon retirement until death.
Becausetheemployee's future benefit is defined, the employer assumes the investment risk.
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The employer makes contributions to a fund established to provide the promised future
benefits. Poor investment performance will increase the amount of required employer
contributions to the fund. There are three major steps in the portfolio management process:
Step 1: The planning step begins with an analysis of the investor's risk tolerance, return
objectives, time horizon, tax exposure, liquidity needs, incomeneeds,andany unique
circumstances orinvestor preferences.
This analysisresultsinaninvestmentpolicy statement(IPS)that details
theinvestor'sinvestment objectivesandconstraints.Itshould alsospecifyan objectivebenchmark
(suchasanindexreturn) againstwhichthesuccessofthe portfolio management
processwillbemeasured.The IPSshould beupdatedat
leasteveryfewyearsandanytimetheinvestor'sobjectivesorconstraints change significantly.
Step2:Theexecution stepinvolvesananalysisoftheriskandreturn characteristics
ofvariousassetclassestodetermine howfundswillbeallocatedtothevarious assettypes.Often,
inwhat isreferredtoasatop-downanalysis,aportfolio managerwillexaminecurrent economic
conditions andforecastsofsuch macroeconomicvariablesasGDP growth, inflation, andinterest
rates,inorder toidentify theassetclassesthat aremostattractive. The resulting portfolio is
typicallydiversifiedacrosssuchassetclassesascash,fixed-income securities, publicly traded
equities,hedgefunds, privateequity,andrealestate,aswellas commodities andother realassets.
Once theassetclassallocations aredetermined, portfolio managers mayattempt toidentify
themostattractive securitieswithin theassetclass.Securityanalysts usemodelvaluations
forsecuritiestoidentify thosethat appearundervalued in what istermed bottom-
upsecurityanalysis.
Step3: Thefeedback stepisthefinalstep.Overtime, investorcircumstances will change,
riskandreturn characteristics ofassetclasses will change,andtheactual
weightsoftheassetsintheportfolio willchangewithassetprices.Theportfolio manager must
monitorthesechangesandrebalance theportfolio periodicallyinresponse,adjusting
theallocations tothevariousassetclassesbacktotheir desiredpercentages. The manager
mustalsomeasureportfolio performance and evaluateitrelativetothereturn onthebenchmark
portfolio identifiedintheIPS.
Mutual funds areoneformofpooled investments(i.e.,asingleportfolio
thatcontainsinvestment funds frommultiple investors ). Eachinvestor
ownssharesrepresentingownership ofaportion o f theoverallportfolio. The
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totalnetvalueoftheassetsinthe fund (pool)dividedbythenumber
ofsuchsharesissuedisreferredtoasthenetasset value (NAV)ofeachshare.
With anopen-endfund, investorscanbuynewlyissuedsharesattheNAV.Newly
investedcashisinvestedbythemutual fund managers inadditional portfolio securities.
Investorscanredeem theirshares(sellthembacktothefund) atNAVaswell.All mutualfunds
chargeafeefortheongoing management oftheportfolio assets,which isexpressedasapercentage
ofthenetassetvalueofthefund. No-loadfunds donotchargeadditional feesforpurchasing
shares(up-front fees)orforredeeming shares(redemption fees).Loadfunds chargeeitherup-
frontfees,redemptionfees,orboth.
Closed-endfunds areprofessionally managed poolsofinvestor moneythat donottake
newinvestments into thefund orredeeminvestorshares.Thesharesofaclosed-end fund
tradelikeequityshares(onexchangesorover-the-counter).Aswith open-end funds,
theportfolio management firmchargesongoing management fees.
TypesofMutual Funds
Money market funds investinshort-termdebtsecurities andprovideinterest income
withverylowriskofchangesinsharevalue.FundNAVsaretypicallysettoonecurrency unit,
buttherehavebeeninstances overrecentyearsinwhich theNAVofsomefundsdeclined
whenthesecuritiestheyhelddroppeddramatically invalue.Fundsare differentiated
bythetypesofmoneymarket securitiestheypurchase andtheir average maturities.
Bondmutual funds investinfixed-income securities.Theyaredifferentiated bybond maturities,
creditratings,issuers,andtypes.Examplesinclude government bond funds, tax-exempt bond
funds, high-yield (lowerratedcorporate) bond funds, andglobalbond funds.
Agreatvarietyofstockmutual funds areavailabletoinvestors.Index funds are
passivelymanaged; that is,theportfolio isconstructed tomatch theperformance ofa particular
index,suchastheStandard &Poor's500Index.Activelymanagedfunds
refertofundswherethemanagement s e l e c t s individual securitieswith thegoalofproducing
returns greaterthan thoseoftheirbenchmark i n d e x e s .Annual management feesare
higherforactivelymanaged funds, andactivelymanaged fundshavehigherturnover of portfolio
securities (thepercentage ofinvestments that arechanged during theyear).This
leadstogreatertax liabilities comparedtopassively managedindexfunds.
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Other FormsofPooledInvestments
Exchange-traded funds(ETFs)aresimilartoclosed-end fundsinthose purchases
andsalesaremadeinthemarket ratherthanwith thefunditself.There areimportant
differences,however.While closed-end fundsareoftenactivelymanaged, ETFsaremost
ofteninvestedtomatch aparticular index (passivelymanaged). With closed-end funds,
themarket priceofsharescandiffersignificantly fromtheirNAVduetoimbalancesbetween
investorsupplyanddemand forsharesatanypoint intime.Specialredemption provisions
forETFsaredesignedtokeeptheirmarket pricesveryclosetotheirNAVs.
ETFscanbesoldshort, purchased onmargin, andtraded atintraday prices,whereas open-end
funds aretypicallysoldandredeemed onlydaily,basedontheshareNAV calculated with
closingassetprices.Investors inETFsmust paybrokerage commissions when theytrade,
andthereisaspreadbetween thebidpriceatwhich market makers
willbuysharesandtheaskpriceatwhichmarket makerswillsellshares.With mostETFs,
investorsreceiveanydividend incomeonportfolio s tocksincash,whileopen
endfundsofferthealternative ofreinvesting dividends inadditional fundshares.One
finaldifference isthatETFsmayproduce less capitalgainsliability compared toopen•
endindexfunds.This isbecauseinvestor sales ofETFsharesdonotrequirethefund to
sellanysecurities. Ifanopen-end fundhassignificant redemptions that causeittosell appreciated
portfolio shares,shareholdersincur acapitalgainstaxliability.
Aseparately managedaccountisaportfolio that isownedbyasingleinvestor and managed
according tothat investor'sneedsandpreferences.Nosharesareissued,asthe singleinvestor
ownstheentireaccount.
Hedge funds arepoolsofinvestorfundsthat arenot regulated totheextentthat mutual funds
are.Hedgefunds arelimited
inthenumberofinvestorswhocaninvestinthefundandareoftensoldonlytoqualifiedinvestorswhoh
aveaminimumamount ofoverallportfolio wealth.Minimuminvestments canbequitehigh,
oftenbetween$250,000 and$1million.
There isagreatvarietyofhedgefundstrategies,andmajorhedgefund categoriesare
basedontheinvestment strategythat thefundspursue:
Long/shortfunds buysecuritiesthat areexpected tooutperformtheoverallmarket
andsellsecuritiesshort that areexpectedtounderperformtheoverallmarket.
Equity market-neutralfunds arelong/shortfundswithlongstockpositions that are
justoffsetinvaluebystockssoldshort.Thesefunds aredesignedtobeneutral with
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respecttooverallmarket movements sothat theycanbeprofitable inboth upand
downmarkets aslongastheirlongsoutperform theirshorts.
Anequityhedgefundwith abiasisalong/shortfund dedicated toalargerlong position
relativetoshortsales(alongbias)ortoagreatershortposition relativeto longpositions
(ashort bias).
Event-drivenfunds investinresponsetoone-time corporate events,suchasmergers
andacquisitions.
Fixed-incomearbitragefunds takelongandshortpositions indebtsecurities,
attemptingtoprofitfromminor mispricing whileminimizing theeffectsofinterest
ratechangesonportfolio values.
Convertiblebond arbitragefunds takelongandshort positions inconvertible bonds
andtheequitysharestheycanbeconverted intoinordertoprofitfroma relativemispricing
between thetwo.
Global macro funds speculate onchangesininternationalinterest ratesandcurrency
exchangerates,oftenusingderivativesecuritiesandagreatamount ofleverage.
Buyout funds (private equity funds) typicallybuyentirepublic companies andtake them private
(theirsharesnolongertrade).Thepurchase ofthecompanies isoften funded withasignificant
increaseinthefirm'sdebt (aleveragedbuyout). The fundattempts
toreorganizethefirmtoincreaseitscashflow,paydownitsdebt, increasethe
valueofitsequity,andthen selltherestructured firmoritsparts inapublic offeringor toanother
company overafairlyshort timehorizon ofthreetofiveyears.
Venture capital funds typicallyinvestincompanies intheirstart-upphase,with the intent
togrowthem intovaluablecompanies that
canbesoldpubliclyviaanIPOorsoldtoanestablished firm.Bothbuyout fundsandventure
capitalfunds arevery involvedinthemanagement oftheirportfolio companies
andoftenhaveexpertiseinthe industries onwhich theyfocus.
4.2 Portfolio risk and return
Holding period return (HPR) issimplythepercentage increaseinthevalueofan investment
overagiventimeperiod:
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Ifastockisvaluedat€20 atthebeginning oftheperiod, pays€1 individends overthe period,
andattheendoftheperiod isvaluedat€22, theHPR is:
HPR =(22+ 1)/20- 1 =0.15= 15%
AverageReturns
Thearithmeticmean return isthesimpleaverageofaseriesofperiodic returns. Ithasthestatistical
propertyofbeinganunbiased estimator ofthetruemeanoftheunderlying distributionofreturns:
Thegeometric mean return isacompound annual rate.When periodic ratesofreturn
varyfromperiod toperiod, thegeometric meanreturn willhaveavalueless than the arithmetic
meanreturn:
Forexample,forreturns Rtoverthreeannual periods, thegeometric meanreturn is calculated
asfollows:
Example: Return measures
An investor purchased $1,000 of a mutual fund’s shares. The fund had the following
total returns over a 3-year period: +5%, -8%, + 12%. Calculate the value at the end
of the 3-year period, the holding period return, the mean annual return, and the
geometric mean annual return.
Answer:
, which can also
be calculated as
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, which can
also be calculated as geometric mean return
Themoney-weightedrateofreturn istheinternal rateofreturn onaportfolio based
onallofitscashinflowsandoutflows.Tocalculateamoney-weightedrateofreturn, consider
thebeginning valueandadditional deposits ofcashbytheinvestor tobe
inflowsandconsiderwithdrawals ofcash,interest, anddividends (whichareadditional
cashavailabletobewithdrawn) andtheendingvaluetobeoutflows.
Example: Money-weighted rate of return
Assume an investor buys a share of stock for $80 at t = 0 and at the end of the next
year (t =1), she buys an additional share for $70. At the end of Year 2, the investor
sells both shares for $85 each. At the end of each year in the holding period the stock
paid a $1.50 per share dividend. What is the money-weighted rate of return?
Answer:
Step 1: Determine the timing of each cash flow and whether the cash flow is an
inflow (+), into the account, or an outflow (-), available from the account.
t = 0: purchase of first share = +$80.00 inflow to account
t = 1:
purchase of second share = + $70.00
dividend from first share =
Subtotal, t = 1 + 468.50 inflow to account
t = 2: dividend from two shares =
proceeds from selling shares =
Subtotal, t = 2
Step 2: Net the cash flows for each time period and set the PV of cash inflows equal
to the present value of cash outflows.
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Step 3: Solve for r to find the money-weighted rate of return.
Net cash flows:
The money-weighted rate of return is 10.35%.
Inthepreviousexample,thecashflowsinandoutoftheaccount occuratI-year
intervalssothatwesolvedforanannual money-weightedrateofreturn. Moregenerally,
wemustusetheshortest period betweensignificant cashflowsintooroutoftheaccount whensetting
uptheinternal rateofreturn calculation. Forexample, if weuseonemonth asourperiod
(zerocashflowformonths with nocashflows),theinternal rateofreturn calculation
willyieldamonthlyrateofreturn. Inthat case,wewould needto compound themonthlymoney-
weightedreturn for12months totranslate itintoan effectiveannual rate.
Other Return Measures
Grossreturn referstothetotal return onasecurityportfolio beforededucting feesfor
themanagement andadministration oftheinvestment account. Net return referstothe return
afterthesefeeshavebeendeducted. Note that commissions ontradesandothercoststhat
arenecessarytogenerate theinvestment returns arededucted inboth gross andnetreturn
measures.
Pretax nominal return referstothereturn priortopayingtaxes.Dividend income, interest income,
short-termcapitalgains,andlong-term capitalgainsmayallbetaxedat different rates.
After-tax nominal return referstothereturn afterthetaxliability isdeducted.
Realreturn isnominal return adjusted forinflation.Consider aninvestorwhoearnsa nominal
return of7%overayearwheninflation is2%.The investor'sapproximate real return issimply7- 2=
5%.The investor'sexactrealreturn isslightlylower,1.07/1.02- 1 = 0.049=4.9%.
Realreturn measurestheincreaseinaninvestor'spurchasing power:howmuch more
goodsshecanpurchase attheendofoneyearduetotheincreaseinthevalueofher
investments.Ifsheinvests$1,000 andearnsanominal return of 7%, shewillhave$1,070
attheendoftheyear.Ifthepriceofthegoodssheconsumes hasgoneup2%, from$1.00 to$1.02,
shewillbeabletoconsume 1,070I1.02= 1,049units. Shehas givenupconsuming 1,000units
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todaybutinstead isabletopurchase 1,049 unitsatthe endofoneyear.Herpurchasing
powerhasgoneup4.9%; thisisherrealreturn.
Aleveraged return referstoareturn toaninvestor that isamultiple ofthereturn onthe underlying
asset.Theleveragedreturn iscalculated asthegainorlossontheinvestment asapercentage
ofaninvestor'scashinvestment.Aninvestment inaderivativesecurity, suchasafutures contract,
produces a
leveragedreturn becausethecashdeposited isonlyafraction ofthevalueoftheassetsunderlying
thefutures contract. Leveraged investments
inrealestateareverycommon:investorspayforonlypartofthecostof thepropertywith
theirowncash,andtherestoftheamount ispaidforwith borrowed money.
Anexamination ofthereturns andstandard deviation ofreturns forthemajorinvestable
assetclassessupports theideaofatradeoffbetween riskandreturn.UsingU.S. data over the
period 1926-2008 as an example, shown in Figure 1, small-capitalizationstockshave
hadthegreatestaveragereturns andgreatestriskovertheperiod.T-billshadthelowest
averagereturns andtheloweststandard deviation ofreturns.
Figure 1:RiskandReturn ofMajorAssetClassesintheUnited States (1926-2008)
AssetsClass
AverageAnnual
Return
(GeometricMean)
Standard Deviation
(Annualized
Monthly) Small-cap
stocks
11.7% 33.0%
Large-cap
stocks
9.6% 20.9%
Long-term
corporate
bonds 5.9% 8.4%
Long-term Treasury
bonds
5.7% 9.4%
Treasury bills 3.7% 3.1%
Inflation 3.0% 4.2%
Resultsforother marketsaround theworldaresimilar:assetclasseswith thegreatest
averagereturns alsohavethehigheststandard deviations ofreturns.
The annual nominal return onU.S.equitieshasvariedgreatlyfromyeartoyear,
rangingfromlossesgreaterthan 40%togainsofmorethan 50%.Wecanapproximate
therealreturns overtheperiod bysubtracting inflation. The asset class with the least risk, T-
bills, had a real return of only approximately 0. 7% over the period, while the
approximate real return on U.S. large-cap stocks was 6.6%. Because annual inflation
fluctuated greatly over the period, realreturns havebeenmuch morestablethan nominal
returns.
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Evaluating investments usingexpectedreturn andvarianceofreturns isasimplification
becausereturns donotfollowanormal distribution;distributions arenegativelyskewed,
withgreaterkurtosis (fattertails)than anormal distribution.Thenegativeskewreflectsatendency
towardslargedownside deviations, whilethepositiveexcesskurtosis reflects frequent
extremedeviations on both the upside and downside. These non-normal characteristics of
skewness (# 0) and kurtosis ( # 3) should be taken into account when analyzing
investments.
Liquidity isanadditional characteristic toconsiderwhenchoosing investments because liquidity
canaffectthepriceand,therefore, theexpectedreturn ofasecurity.Liquidity canbeamajorconcern
inemerging markets andforsecuritiesthat tradeinfrequently, suchaslow-quality corporate
bonds.
Variance(StandardDeviation)ofReturns foranIndividualSecurity
Infinance,thevarianceandstandard deviation ofreturns arecommon measuresof investment
risk.Bothofthesearemeasuresofthevariability ofadistributionofreturns about
itsmeanorexpectedvalue.
Wecancalculatethepopulation variance, , whenweknowthereturnRtforeachperiod, thetotal
number periods (T), andthemeanorexpectedvalueofthepopulation's distribution(µ),
asfollows:
Intheworld offinance,wearetypicallyanalyzingonlyasampleofreturns data, rather than
theentirepopulation.Tocalculatesamplevariance,s2,usingasampleofT historicalreturns
andthemean, oftheobservations,weusethefollowingformula:
CovarianceandCorrelationofReturnsforTwoSecurities
Covariance measurestheextent towhich twovariablesmovetogether overtime.A
positivecovariancemeansthat thevariables(e.g.,ratesofreturn ontwostocks)tend
tomovetogether. Negativecovariancemeansthat thetwovariablestend tomoveinopposite
directions. Acovarianceofzeromeansthereisnolinearrelationship
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betweenthetwovariables.Toput itanother way,ifthecovarianceofreturns between twoassets
iszero,knowing thereturn forthenextperiod ononeoftheassetstellsyounothing about thereturn
oftheother assetfortheperiod.
Herewewillfocusonthecalculation ofthecovariancebetween twoassets'returnsusinghistorical
data.The calculation ofthesamplecovarianceisbasedonthefollowing formula:
Where:
Rt,1= return on Asset 1 in period t
Rt,2= return on Asset 2 in period t
1
n = number of periods
Themagnitude ofthecovariancedepends onthemagnitude oftheindividual stocks' standard
deviations andtherelationship between theirco-movements.Covariance isan absolute
measureandismeasured inreturn units squared.The covarianceofthereturns
oftwosecuritiescanbestandardized bydividing bythe productofthestandard deviations
ofthetwosecurities.This standardized measureof co-movement
iscalledcorrelationandiscomputed as:
The relation can also be written as:
The term iscalledthecorrelation coefficient between thereturns ofsecurities 1 and2. The
correlation coefficienthasnounits. Itisapuremeasureoftheco-movement ofthe twostocks'returns
andisboundedby-1 and+1.
Howshouldyouinterpretthecorrelation coefficient?
Acorrelation coefficientof +1 meansthat deviations fromthemeanorexpected
return arealwaysproportionalinthesamedirection.That is,theyareperfectly
positivelycorrelated.
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Acorrelation coefficientof -1 meansthat deviations fromthemeanorexpected
return arealwaysproportionalinopposite directions. That is,theyareperfectly
negativelycorrelated.
Acorrelation coefficientofzeromeansthat thereisnolinearrelationship between
thetwostocks'returns. Theyareuncorrelated.Onewaytointerpretacorrelation
(orcovariance)ofzeroisthat, inanyperiod, knowing theactualvalueofone
variabletellsyounothingabout thevalueoftheother.
Example: Calculating mean return, returns variance, returns covariance,
and correlation
Given the six years of percentage returns for Stocks 1 and 2 in the following table,
calculate the mean return, sample variance, sample covariance, and correlation for the two
returns series.
Year
Stock 1
Return
Stock 2
Return
)
)
) )
20X4
+0.20
20X5
20X6
20X7
+0.30
20X8
20X9
+ 0.60
= 0.05
=0.10
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Answer:
To calculate the mean returns for the samples, we sum the returns for each stock and
divide by the number of years. The mean returns are for Stock 1 and
for Stock 2.
Using the deviations of each year’s returns from the mean return for Stock 1, we can
calculate the sample variance as follows:
Using the deviations of each year’s returns from the mean return for Stock 2, we can
calculate the sample variance as follows:
In the right-hand column of the table, we have summed the products of the
deviations of Stocks 1 and 2 from their means to get 0.255.
The sample covariance is calculated as 0.255 I (6— 1) 0.051.
To convert the covariance into correlation, we use the sample standard deviations of
returns for the two stocks:
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Finally, we can calculate the correlation coefficient for the two stocks’ returns as
follows:
Arisk-averse investor issimplyonethat dislikesrisk(i.e.,preferslessrisktomorerisk).
Giventwoinvestments thathaveequalexpected returns, arisk-averseinvestorwill
choosetheonewithlessrisk(standarddeviation, ).
Arisk-seeking (risk-loving) investor actuallyprefersmorerisktoless and,givenequal
expectedreturns, willchoosethemoreriskyinvestment. Arisk-neutralinvestorhasno preference
regarding riskandwouldbeindifferent betweentwosuchinvestments.
Consider thisgamble:Acoinwillbeflipped; ifitcomesupheads,youreceive $100; if it comes up
tails, you receive nothing. The expected payoff is 0.5($100) + 0.5($0) = $50. A risk-averse
investor would choose a payment of $50 (a certain outcome) overthegamble. Arisk-seeking
investorwould preferthegambletoacertain payment of$50.Arisk-neutral investorwould
beindifferent between thegambleandacertain payment of$50.
Ifexpectedreturns areidentical, arisk-averseinvestorwillalwayschoosetheinvestment
withtheleastrisk.However,aninvestormayselectaveryriskyportfolio despitebeing
riskaverse;arisk-averseinvestorwillholdveryriskyassetsifhefeelsthat theextra return
heexpectstoearnisadequate compensation fortheadditional risk.
Thevarianceofreturns foraportfolio oftworiskyassetsiscalculated asfollows:
wherew1istheproportionoftheportfolio investedinAsset1,andw2istheproportion oftheportfolio
investedinAsset 2.W2 must equal(1-w1 ).
Previously,weestablished that thecorrelation ofreturns fortwoassetsiscalculated as:
Substituting thisterm forCov12intheformula forthevarianceofreturns foraportfolio
oftworiskyassets,wehavethefollowing:
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:
Writing theformula inthisformallowsustoeasilyseetheeffectofthecorrelation of returns between
thetwoassetsonportfolio risk.
Iftworiskyassetreturns areperfectlypositivelycorrelated, p12 = +1,then thesquareroot
ofportfolio variance (theportfolio standard deviation ofreturns) isequalto:
In this unique case, with p12 = l, theportfolio standard deviation issimplyaweighted
averageofthestandard deviations oftheindividual assetreturns.Aportfolio 25% investedinAsset
1and75% investedinAsset2willhaveastandard deviation ofreturns equalto25%ofthestandard
deviation ( ) ofAsset1 's return, plus75%ofthestandard deviation ( ) ofAsset2'sreturn.
Focusingonreturns correlation, wecanseethat thegreatestportfolio riskresultswhen
thecorrelation between assetreturns is+1. Foranyvalueofcorrelation lessthan +1, portfolio
varianceisreduced. Note that foracorrelation ofzero,theentirethird termin theportfolio
varianceequation iszero.Fornegativevaluesofcorrelation p12, thethird
termbecomesnegativeandfurther reducesportfolio varianceandstandard deviation.
Wewillillustrate thispropertywith anexample.
Example: Portfolio risk as correlation varies
Consider two risky assets chat have returns variances of 0.0625 and 0.0324,
respectively. The assets’ standard deviations of returns arc then 25% and 18%,
respectively. Calculate the variances and standard deviations of portfolio returns for an equal-
weighted portfolio of the two assets when their correlation of returns is 1, 0.5, 0, and 0.5.
The calculations are as follows:
+
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:
:
Note thatportfolio riskfallsasthecorrelation betweentheassets'returns decreases.This
isanimportant resultoftheanalysisofportfolio risk:The lowerthecorrelation ofasset returns,
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thegreatertheriskreduction (diversification) benefitofcombining assetsina
portfolio.Ifassetreturns wereperfectly negativelycorrelated, portfolio riskcouldbe eliminated
altogether foraspecificsetofassetweights.
Weshowtheserelations graphically inFigure2byplotting theportfolio riskandreturn
forallportfolios oftworiskyassets,forassumedvaluesoftheassets'returns correlation.
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Figure 2: Risk and Return for Different Values of p
Fromtheseanalyses,therisk-reductionbenefitsofinvesting inassetswithlowreturn correlations
shouldbeclear.The desiretoreduceriskiswhat drivesinvestorstoinvestin notjustdomestic
stocks,butalsobonds, foreignstocks,realestate,andother assets.
Foreachlevelofexpectedportfolio re tu rn , wecanvarytheportfolio weightsonthe individual
assets todetermine t h e portfolio t ha t hastheleastrisk.Theseportfolios
thathavetheloweststandard deviat ionofallportfolios withagivenexpectedreturn areknown
asminimum-varianceportfolios.Together theymakeuptheminimum-variance frontier.
Onariskversusreturn graph, theportfolio that isfarthest totheleft(hasthe leastrisk)isknown
astheglobalminimum-varianceportfolio.
Assuming thatinvestorsareriskaverse,investorsprefertheportfolio t ha thasthegreatest
expected returnwhenchoosing amongportfolios thathavethesamestandard
deviationofreturns. Those portfoliosthathavethegreatestexpectedreturn foreachlevelofrisk
(standard deviation) makeuptheefficient frontier.The efficientfrontier coincideswith
thetopportion o f theminimum-variancefrontier. Arisk-averseinvestorwould only
chooseportfolios that areontheefficientfrontier becauseallavailableportfolios that are
notontheefficientfrontier havelowerexpected returns than anefficientportfolio with
thesamerisk.Theportfolio on theefficientfrontier thathastheleastriskistheglobal minimum-
varianceportfolio.
Theseconcepts areillustrated inFigure3.
E (RP)
100% Asset A
100% Asset B B
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Figure 3: Minimum-Variance and Efficient Frontiers
An investor's utility functionrepresents the investor's preferences in terms of risk and return
(i.e., his degree of risk aversion). An indifference curve is a tool from economics that, in
this application, plots combinations of risk (standard deviation) and expected return
amongwhich aninvestor is indifferent. In constructing indifference curves for portfolios
based on only their expected return and standard deviation of returns, we are assuming
that these are the only portfolio characteristics that investors care about. In Figure 4, we
show three indifference curves for an investor. The investor's expected utility is
thesameforallpoints alongasingleindifference curve. Indifference curve I1represents the
most preferred portfolios in Figure 4; ourinvestorwillpreferanyportfolio
alongI1toanyportfolio oneitherI2orI3
Figure 4: Risk-Averse Investor’s Indifference Curves
Global Minimum
Variance Portfolio
E(R)
Individual Security
Efficient frontier
(All Efficient portfolios)
Inefficient portfolios
E(R)
I1
I2
I3
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Indifference curvesslopeupward forrisk-averseinvestorsbecausetheywillonlytakeon
morerisk(standard deviationofreturns) iftheyarecompensated wi thgreaterexpected returns.
Aninvestorwhoisrelativelymoreriskaverserequiresarelativelygreater increaseinexpected
returntocompensate foragivenincreaseinrisk.Inotherwords,amorerisk-
averseinvestorwillhavesteeperindifference curves ,reflectingahigher riskaversion coefficient.
Inourpreviousillustration o f efficientportfolios availableinthemarket, weincluded
onlyriskyassets.Nowwewillintroduce a risk-freeassetinto ouruniverseofavailable
assets,andwewillconsider theriskandreturn characteristics ofaportfolio thatcombines
aportfolio of riskyassetsandtherisk-freeasset.RecallfromQuantitative Methods
thatwecancalculatetheexpectedreturn andstandard deviationofaportfoliowithweight
WAallocated to risky Asset A and weight WB allocated to risky Asset B using the following
formulas:
AllowAssetBtobetherisk-freeassetandAssetAtobetheriskyassetportfolio.Because arisk-
freeassethaszerostandard deviationandzerocorrelation ofreturns withthoseofariskyportfolio,
t h i s resultsinthereduced equation:
The intuitionofthisresultisquite simple:Ifweput X% ofourportfolio intotherisky assetportfolio,
the resulting portfolio will have standard deviation of returns equal to X% of the standard
deviation of the risky asset portfolio. The relationship betweenportfolio risk and return for
various portfolio allocations is linear, as illustrated in Figure 5.
Combining a risky portfolio with a risk-free asset is the process that supports the two fund
separation theorem, which states that all investors' optimum portfolios will be made up of
some combination of an optimal portfolio of risky assets and the risk-free asset. The line
representing these possible combinations of risk-free assets and the optimal risky asset
portfolio is referred to as the capital allocation line.
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Point X on the capital allocation line in Figure 5 represents a portfolio that is 40% invested in
the risky asset portfolio and 60% invested in the risk-free asset. Its expected return will be
0.40[E(R risky asset portfolio)] + 0.60(Rf), and its standard deviation will be 0.40(J risky asset
portfolio)
Figure 5: Capital Allocation Line and Risky Asset Weights
Now that we have constructed a set of the possible efficient portfolios (the capital
allocation line), we can combine this with indifference curves representing an
individual's preferences for risk and return to illustrate the logic of selecting an optimal
portfolio (i.e., one that maximizes the investor's expected utility). In Figure 6, we can
see that Investor A, with preferences represented byindifference curves I1, I2, and I3, can
reach the level of expected utility on I1 by selecting portfolio X. This is the optimal
portfolio for this investor, as any portfolio that lies on I2 is preferred to all portfolios that
lie on I3 (and in fact to any portfolios that lie between I2 and I3). Portfolios on I1 are
preferred to those on I2, but none of the portfolios that lie on I1 are available in the
market.
Figure 6: Risk-Averse Investor’s Indifference Curves
X
E(
E(R)
E(
Capital
Allocation Line
I3
X
I1
I2
E(R)
Capital
Allocation
Line
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Thefinalresultofouranalysishereisnotsurprising; investorswhoarelessriskaverse
willselectportfolios thataremorerisky.Recallthat thelessaninvestor'sriskaversion,
theflatterhisindifference curves.Asillustrated inFigure7,theflatterindifference curve
forInvestor B(IB)resultsinanoptimal (tangency) portfolio thatliestotherightofthe onethat
resultsfromasteeperindifference curve,suchasthatforInvestorA(IA).An
investorwhoislessriskaverseshould optimallychooseaportfolio withmoreinvestedin
theriskyassetportfolio andlessinvestedintherisk-freeasset.
Figure 7: Portfolio Choices Based on Investor’s Indifference Curves
Intheprevioustopicreview, wecoveredthemathematics ofcalculating theriskand
returnofaportfolio with apercentage weightofWA investedinariskyportfolio (P) and a weight
of WB = 1- WA invested in a risk-free asset.
Becausearisk-freeassethaszerostandard deviationandzerocorrelation o f returns
withariskyportfolio, a l l o w i n g AssetBtobetherisk-freeassetandAssetAtobetherisky
assetportfolio resu l t s inthefollowingreduced equation:
Our resultisthat therisk(standard deviationofreturns) andexpectedreturn ofportfolios
withvaryingweightsintherisk-freeassetandariskyportfolio canbe
E(R)
A
B
Capital
Allocation Line
IA
IB
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Plotted asalinethatbeginsattherisk-freerateofreturn andextendsthroughtherisky portfolio.This
resultisillustrated inFigure 1.
Figure 1: Combining a Risk-Free Asset with a Risky Asset
Thelineofpossibleportfolio r i skandreturn combinationsgiventherisk-freerateand
theriskandreturn ofaportfolio ofriskyassetsisreferredtoasthecapital allocationline
(CAL).Foranindividual investor, thebestCAListheonethat offersthemost preferred
setofpossibleportfolios intermsoftheirriskandreturn. Figure2illustrates threepossibleinvestor
CALsforthreedifferent riskyportfolios A,B,andC.The optimal riskyportfolio for thisinvestor
isPortfolioAbecauseitresultsinthemostpreferred setofpossibleportfolios
constructedb y combining t h e risk-freeassetwith theriskyportfolio. Ofalltheportfolios
availabletotheinvestor,acombination oftherisk freeassetwith
riskyPortfolioAofferstheinvestorthegreatestexpected utility.
E(RA)
E(Rportfolio)
Rf
0
Risk free
Asset
Portfolio with
WA
Invested in the
Risky Asset
Risky Asset
E(RP)
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Figure 2: Risky Portfolios and Their Associated Capital Allocation Line
Ifeachinvestor hasdifferent expectations about theexpectedreturns of,standard deviations
of,orcorrelations betweenriskyassetreturns, eachinvestorwillhavea different optimal
riskyassetportfolio andadifferent CAL.
Asimplifying assumption underlying modern portfolio theory (andthecapitalasset pricing
model,which isintroducedlaterinthistopic review)isthat investorshave
homogeneousexpectations (i.e.,theyallhavethesameestimates ofrisk,return, and correlations
with other riskyassetsforallriskyassets).Under thisassumption,
a l l investorsfacethesameefficientfrontier ofriskyportfolios andwillallhavethesame optimal
riskyportfolio andCAL.
Figure3illustrates thedeterminationoftheoptimal riskyportfolio andoptimal
CALforallinvestors undertheassumption o fhomogeneousexpectations.Note that,
underthisassumption, t h e optimal CALforanyinvestor istheonethat isjusttangent tothe
efficientfrontier. Depending o n theirpreferencesforriskandreturn ( theirindifference
curves),investorsmaychoosedifferent portfolio weightsfortherisk-freeassetandthe
risky(tangency) portfolio. Everyinvestor,however,willusethesameriskyportfolio. When
thisisthecase,thatportfolio mustbethemarket portfolioofallriskyassets
becauseallinvestorsthathold anyriskyassetshold thesameportfolio o f riskyassets.
E(R)
CALA
A
B
CALC
CALB
C
Indiffe
rence
curve
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Figure 3: Determining the Optimal Risky Portfolio and Optimal CAL Assuming
Homogeneous Expectations
Under theassumption o fhomogeneousexpectations,thisoptimal CALforallinvestors
istermed thecapital marketline(CML).Alongthisline,expectedportfolio return, E(Rp),is
alinearfunction ofportfolio risk, p· The equation ofthislineisasfollows:
They-interceptofthislineisRfandtheslope(riseoverrun) ofthislineisasfollows:
The intuitionofthisrelation isstraightforward.Aninvestorwhochoosestotakeonno risk( p = O)
will earntherisk-freerate,Rf.The differencebetween theexpected returnonthemarket
andtherisk-freerateistermed themarket r iskpremium.Ifwerewrite theCMLequation as
wecanseethat aninvestor canexpecttogetoneunit ofmarket riskpremium in additional return
(abovetherisk-freerate)foreveryunit ofmarket risk, M,that the investoriswillingtoaccept.
Capital Market Line
Rf Risk free asset
Efficient
Frontier
E(R)
Optimal Risky
portfolio
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Ifweassumethat investorscanboth lend (investintherisk-freeasset)attherisk-freerateandborrow
(aswith amargin account) attherisk-freerate,theycanselect portfoliostotheright ofthemarket
portfolio inFigure3.Anexamplewillillustrate thecalculations.
Example: Portfolio risk and return with borrowing and lending
Assume that the risk-free rate, is 5%; the expected rate of return on the market,
E ( ), is 11%; and that the standard deviation of returns on the market portfolio, is 20%.
Calculate the expected return and standard deviation of returns for
Portfolios that are 25%, 75%, and 125% invested in the market portfolio. We will use to
represent these portfolio weights.
Expected portfolio returns are calculated as E ( ) = (1 WM) x Rf. + WM x E (RM), we have
the following:
Portfolio standard deviation is calculated as , so we have the following:
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Figure 4: Borrowing and Lending Portfolios
Note thatwithaweight (ofinvestorassets)of125%inthemarket portfolio, t h e investorborrows
anamount equa l to25%ofhisportfolio asse t sat5%.Aninvestor with $10,000
wouldthenborrow$2,500 andinvestatotalof$12,500 i n themarket portfolio. This
leveragedportfolio willhaveanexpected returnof12.5%andstandard deviation of25%.
Investorswhobelievemarket pricesareinformationallyefficientoftenfollowapassive
investmentstrategy(i.e.,investinanindexofriskyassetsthat servesasaproxyforthe market
portfolioandallocateaportion o f theirinvestableassetstoarisk-freeasset,such asshort-
termgovernment s e c u r i t i e s ). Inpractice, manyinvestorsandportfolio
managersbelievetheirestimates ofsecurityvaluesarecorrectandmarket pricesareincorrect.
Such investorswillnotusetheweights ofthemarket portfoliobutwillinvestmorethan
themarketweightsinsecuritiesthat theybelieveareundervalued a n d lessthan themarket
weightsinsecuritieswhich theybelieveareovervalued.This isreferredtoasactive
portfoliomanagementtodifferentiate i t fromapassiveinvestment s t r a t eg y that
utilizesamarket indexfortheoptimal riskyassetportfolio.
When aninvestor diversifiesacrossassetsthat arenotperfectlycorrelated, theportfolio's
riskislessthan theweighted averageoftherisksoftheindividual securit ies inthe portfolio.The
riskthat iseliminated b ydiversification iscalledunsystematicrisk(also
Lending portfolios
E(RM)=11%
Rf=5%
0
WM=75%
WM=125%
WM=20%
E(RP) Borrowing portfolios
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calledunique,diversifiable,orfirm-specificrisk).Becausethemarket
portfolioconta insallriskyassets,itmustbeawell-diversifiedportfolio.Alltheriskthat
canbediversifiedawayhasbeen.Theriskthat remainscannotbediversifiedawayandiscalledthe
systematic risk(alsocallednondiversifiableriskormarketrisk).
The conceptofsystematicriskappliestoindividual securitiesaswellastoportfolios.
Somesecurities’ returns arehighlycorrelated withoverallmarket returns. Examplesof firmsthat
arehighlycorrelated withmarket returnsareluxurygoodsmanufacturers
suchasFerrariautomobiles andHarleyDavidson motorcycles. Thesefirmshavehigh
systematic risk(i.e.,theyareveryresponsivetomarket,orsystematic, changes). Other
firms,suchasutility companies, respond verylittletochangesinthesystematic riskfactors.These
firmshaveverylittlesystematic risk.Hence, totalrisk(asmeasured bystandard deviation)
canbebroken downinto itscomponentparts: unsystematic r iskand systematic
risk.Mathematically:
Doyouactuallyhavetobuyallthesecuritiesinthemarket todiversifyaway unsystematic
r isk?No.Academicstudieshaveshownthat asyouincreasethenumber ofstocksinaportfolio,
t h e portfolio’s riskfallstowardthelevelofmarket risk.Onestudy showedthatitonlytookabout
12to18 stocksinaportfolio t o achieve90%of themaximum
d ivers i f i ca t ion possible.Another studyindicatedittook30securities. Whatever
thenumber,itis significantlylessthanallthesecurities. Figure5providesa general
r e p r e s e n t a t i o n ofthisconcept.Note,inthefigure,thatonceyougetto30 o r so
securitiesinaportfolio,thestandard deviationremainsconstant. Theremaining
r i sk issystematic, ornondiversifiable, risk.Wewilldevelopthisconceptlaterwhenwe discuss
beta, a measure of systematic risk.
Figure 5: Risk vs. Number of Portfolio Assets
σ
(Risk)
Market
Risk
(σmkt)
Unsystematic
Risk
Number of securities in the
portfolio
Systematic Risky
Total Risk
(unsystematic risk
+ systematic risk)
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Systematic Risk is Relevant in Portfolios
One important conclusion of capital market theory is that equilibrium security returns
depend on a stock's or a portfolio's systematic risk, not its total risk as measured by
standard deviation. One of the assumptions ofthe modelis that diversificationis free. The
reasoning isthat investors will not be compensated for bearing risk that can be eliminated at
no cost. If you think about the costs of a no-load index fund compared to buying
individual stocks, diversification is actually very low cost if not actually free.
The implications of this conclusion are very important to asset pricing (expected returns).
The riskiest stock, with risk measured as standard deviation of returns, does not
necessarily have the greatest expected return. Consider a biotech stock with one new drug
product that is in clinical trials todetermine its effectiveness. If it turns out that the drug is
effective and safe, stock returns willbe quite high. If, on the other hand, the subjects in the
clinical trials are killed or otherwise harmed by the drug, the stock will fall to
approximately zero and returns will be quite poor. This describes a stock with high standard
deviation of returns (i.e., hightotal risk).
The high risk of our biotech stock, however, is primarily from firm-specific factors, so its
unsystematic risk is high. Because market factors such as economic growth rates have
little to do with the eventual outcome for this stock, systematic risk is a small proportion
of the total risk of the stock. Capital market theory says that the equilibrium return on
this stock may be less than that of a stock with much less firm-specific risk but more
sensitivity to the factors that drive the return of the overall market. An established
manufacturer of machine tools may not be a very risky investment in terms of total
risk,butmayhaveagreatersensitivity tomarket (systematic) riskfactors(e.g.,GDP growth
rates)than ourbiotech stock.Giventhisscenario, thestockwith moretotalrisk(the biotech
stock)hasless systematic riskandwilltherefore havealowerequilibrium r a t e of return
accordingtocapitalmarket theory.
Note thatholding manybiotech firmsinaportfolio willdiversifyawaythefirm-specific
risk.Somewillhaveblockbuster products andsomewillfail,butyoucanimagine that when
50or100suchstocksarecombined intoaportfolio, theuncertaintyabout the portfolio return
ismuch lessthan theuncertaintyabout thereturn ofasinglebiotech firmstock.
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Tosumup,unsystematic r iskisnotcompensated i n equilibrium b e c a u s e itcanbeeliminated
fo r freethroughdiversification.Systematicriskismeasured bythe
contributionofasecuritytotheriskofawell-diversifiedportfolio, a n d theexpected equilibrium
r e t u r n (required return) onanindividual securitywilldepend onlyonits systematic risk.
Return generat ingmodels areusedtoestimate theexpectedreturns onriskysecurities
basedonspecificfactors. Foreachsecurity,wemust estimatethesensitivity ofits returns
toeachspecificfactor.Factorsthat explainsecurityreturns
canbeclassifiedasmacroeconomic,fundamental, andstatistical factors.Multifactormodels
mostcommonly usemacroeconomicfactorssuchasGDP growth, inflation, orconsumer
confidence,alongwithfundamentalfactorssuchasearnings,earningsgrowth, firmsize,
andresearchexpenditures. Statisticalfactorsoftenhavenobasisinfinancetheory
andaresuspectinthat theymayrepresent onlyrelations foraspecifictimeperiodwhich
havebeenidentified bydatamining (repeated testsonasingledataset).
Thegeneralformofamultifactor m o d e l withk factorsisasfollows:
This modelstatesthat theexpectedexcessreturn (abovetherisk-freerate)forAssetiis
thesumofeachfactor sensitivityorfactor loading (the(βs) forAssetimultiplied bythe
expectedvalueofthat factorfortheperiod.The firstfactorisoftentheexpected excessreturn
onthemarket, E (Rm- Rf).
One multifactorm o d e l that isoften usedisthat ofFamaandFrench.They estimated the
sensitivity ofsecurityreturns tothreefactors:firmsize,firmbookvaluetomarket value ratio,
andthereturn onthemarket portfolio minus therisk-freerate(excessreturn onthemarket
portfolio). Carhart suggestsafourth factor that measurespricemomentum usingprior
periodreturns. Together, thesefourfactorsdoarelativelygoodjobof explaining
returnsdifferencesforU.S.equitysecuritiesovertheperiod forwhichthe
modelhasbeenestimated.
Thesimplestfactormodel isasingle-factormodel. Asingle-factor modelwith thereturn
onthemarket, Rm’asitsonlyriskfactorcanbewritten ( inexcess returns fo rm)as:
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Here, theexpected excessreturn (return abovetherisk-freerate)istheproductofthe
factorweightorfactorsensitivity,Betai, andtheriskfactor,whichinthismodel isthe excessreturn
onthemarket portfolio ormarket index,sothat thisisalsosometimes calledasingle-index model.
Asimplifiedformofasingle-index model isthemarket model,whichisusedtoestimate
asecurity's(orportfolio's) betaandtoestimate asecurity'sabnormal return (return above
itsexpected return) basedontheactualmarket return.
Theformofthemarket modelisasfollows:
Where:
Ri = Return on Asset i
Rm = Market return
= Slope coefficient
= Intercept
= Abnormal return on Asset i
The intercept αi and slope coefficient βi areestimated fromhistorical return data. We can
require that αi is the risk-free rate times (1 - βi) to be consistent with the general form of a
single-index model in excess returns form.
The expected return on Asset i is αi + βi E(Rm). A deviation from the expected return in
a given period is the abnormal return on Asset i, ei, or Ri - (αi + βi Rm).
In the market model, the factor sensitivity or beta for Asset i is a measure of how sensitive
the return on Asset i is to the return on the overall market portfolio (market index).
The sensitivity of an asset’s return to the return on the market index in the context of the
market model isreferredtoasitsbeta.Betaisastandardized m e a s u r e ofthe
covarianceoftheasset’s returnwiththemarket return.Betacanbecalculated asfollows:
Wecanusethedefinition ofthecorrelation b e tween thereturns onAssetiwith thereturns
onthemarket index:
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Substituting f o r Covim intheequation for , we canalsocalculatebetaas:
Example: Calculating an asset’s beta
The standard deviation of the return on the market index is estimated as 20%.
1. If Asset A’s standard deviation is 30% and its correlation of returns with the
Market index is 0.8, what is Asset A’s beta?
2. If the covariance of Asset A’s returns with the returns on the market index is 0.048,
what is the beta of Asset A?
Inpractice, weestimate assetbetasbyregressingreturns ontheassetonthoseofthe market
index.While regressionisaLevelIIconcept, forourpurposes, youcanthink ofitasamathematical
e s t i m a t i o n procedu re that fitsalinetoadataplot.InFigure5,we represent theexcessreturns
onAssetiasthedependentvariableandtheexcessreturns onthemarket
indexastheindependentvariable.The leastsquaresregression lineisthe linethat
minimizesthesumofthesquared distancesofthepoints plottedfromtheline (this iswhat ismeant
bythelineofbest fit). Theslopeofthislineisourestimate ofbeta. InFigure6,thelineissteeperthan
45degrees,theslopeisgreaterthan one, and the asset’s estimated betaisgreaterthan one.Our
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interpretationisthat thereturns onAsseti aremorevariableinresponsetosystematic
riskfactorsthan istheoverallmarket, whichhasabetaofone.
Figure 6: Regression of Asset Excess Returns against Market Asset Returns
This regression line is referred to as the asset's security characteristic line. Mathematically,
the slope of the security characteristic line is Covim/ which is the same formula we used
earlier to calculate beta.
Given that the only relevant (priced) risk for an individual Asset i is measured by the
covariance between the asset's returns and the returns on the market, Covi,mkt we can plot
the relationship between risk and return for individual assets using Covi,mkt as our measure
of systematic risk. The resulting line, plotted in Figure 7, is one version of what is referred to
as the security market line (SML).
Figure 7: Security Market Line
Market Excess Return (Rm-Rf)
Asset
Excess
Return
Security
Characteristic Line
E(R) Security Market
Line (SML)
Rf
Market portfolio
Systematic Risk
(
E(Rmkt)
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The equation of the SML is:
Which can be rearranged and stated as:
The line described by this last equation is presented in Figure 8, where we let the
Standardized covariance term, , be defined as beta,
This is the most common means of describing the SML, and this relation between beta
(systematic risk) and expected return is known as the capital asset pricing model
(CAPM).
Figure 8: The Capital Asset Pricing Model
So, we can define beta, , as a standardized measure ofsystematic risk.
Beta measures the relation between a security's excess returns and the excess returns to the
market portfolio.
E(Ri) Security Market
Line (SML)
Rf
Market portfolio
Systematic Risk
E(Rmkt)
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Formally, the CAPM is stated as:
The CAPM holds that, in equilibrium, the expected return on risky asset E(R) is the
risk-free rate (Rf) plus a beta-adjusted market risk premium, βi [E(Rmkt) - Rf]. Beta
measures systematic (market or covariance) risk.
The assumptions of the CAPM are:
Risk aversion. To accept a greater degree of risk, investors require ahigher expected
return.
Utility maximizing investors. Investors choose the portfolio, based on their
individual preferences, with the risk and return combination that maximizes their
(expected) utility.
Frictionless markets. There are no taxes, transaction costs, or other impediments to
trading.
One-period horizon. All investors have the same one-period time horizon.
Homogeneous expectations. All investors have the same expectations for assets'
expected returns, standard deviation of returns, and returns correlations between
assets.
Divisible assets. All investments are infinitely divisible.
Competitive markets. Investors take the market price as given and no investor
caninfluence priceswith their trades.
Comparing t h e CMLandtheSML
It is important to recognize that the CML and SML are very different. Recall the equation of
the CML:
The CML usestotal risk = on the x-axis. Hence, onlyefficient portfolios will plot on the
CML. On theother hand, the SML uses beta (systematic risk) on the x-axis. So in a CAPM
world, all properly priced securities and portfolios of securities will plot on the SML, as
shown in Figure 9.
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Figure 9: Comparing the CML and the SML
Portfolios that are not well diversified (efficient) plot inside the efficient frontier and are
represented by risk-return combinations such as points A, B, and C in panel (a) of Figure
9. Individual securitiesare one example of such inefficient portfolios. According to the
CAPM, theexpected returns on all portfolios, well diversified or not, aredetermined by their
systematic risk. Thus, according to the CAPM, Point A represents a high-beta stock or
portfolio, Point B a stock or portfolio with a beta of one, and Point C a low-beta stock or
portfolio. We know this because the expected return at Point B is equal to the expected
(b) Security Market line
E
A
B
C
D
PM+T-bills
(a) Capital Market Line E(R) CML
Rf
M
E(RM)
PM w/margin
A
E
C
D
E(R) SML
Rf
B
E(RM) PTIT
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return on the market, and the expected returns at Point A and Care greater and less than the
expected return on the market (tangency) portfolio, respectively.
Note that a low-beta stock, such as represented by Point C, is not necessarily low-risk when
total risk is considered. While its contribution to the risk of a well-diversified portfolio may
be low, its risk when held by itself can be considered quite high. A firm whose only activity is
developing a new, but as yet unproven, drug may be quite speculative with highly uncertain
returns. It may also have quite low systematic risk if the uncertainty about itsfuture returns
depends primarily on firm-specific factors.
All stocks and portfolios that plot along the line labeled β = 1 in Figure 9 have the same
expected return as the market portfolio and, thus, according to the CAPM, have the same
systematic risk as the market portfolio (i.e., they all have betas of one).
All points on the CML (except the tangency point) represent the risk-return characteristics
of portfolios formed by either combining the market portfolio with the risk-
freeassetorborrowing attherisk-freerateinordertoinvestmorethan 100%of theportfolio's
netvalueintheriskymarket portfolio (investing onmargin). Point DinFigure8represents
aportfolio that combines themarket portfolio with therisk-free asset,whilepoints
abovethepoint oftangency,suchasPointE,represent portfolios createdbyborrowing attherisk-
freeratetoinvestinthemarket portfolio.Portfolios that
donotlieontheCMLarenotefficientandtherefore haveriskthatwillnotbe rewardedwithhigher
expectedreturns inequilibrium.
According totheCAPM, allsecuritiesandportfolios, d iv e r s i f i ed ornot,willplotontheSMLin
equilibrium. In fact, all stocks and portfolios along the line labeled β = 1 in
Figure9,including themarket portfolio,willplotatthesamepoint ontheSML.They
willplotatthepoint ontheSMLwith betaequaltooneandexpectedreturn equalto theexpected
returnonthemarket, regardless of their totalrisk.
The CAPMisoneofthemostfundamental concepts ininvestment theor y.The
CAPMisanequilibrium m o d e l thatpredicts theexpected returnonastock,giventheexpected
return onthemarket, thestock'sbetacoefficient, andtherisk-freerate.
BecausetheSMLshowstheequilibrium (required) returnforanysecurityorportfolio
basedonitsbeta (systematicrisk),analystsoftencompare theirforecastofasecurity's return
toitsrequired returnbasedonitsbetarisk.Thefollowingexampleillustrates this technique.
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Example: Identifying mispriced securities
The following figure contains information based on analyst’s forecasts for three stocks.
Assume a risk-free rate of 7% and a market return of 15%. Compute the expected and
required return on each stock, determine whether each stock is undervalued, overvalued,
or properly valued, and outline an appropriate trading strategy.
Forecast Data
Stock Price Today
E(Price) in 1 Year E(Dividend) in 1 Year
Beta
A $25
$27
$1.00
1.0
B 40
45
2.00
0.8
C 15
17
0.50
1.2
Answer:
Expected and required returns computations are shown in the following figure.
Forecasts vs. Required Returns
Stock Forecast Return Required Return
A
B
C
• Stock A is overvalued. It is expected to earn 12%, but based on its systematic risk,
it should earn 15%. It plots below the SML.
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• Stock B is undervalued. It is expected to earn 17.5%, but based on its systematic
risk, it should earn 13.4%. It plots above the SML.
• Stock C is properly valued. It is expected to earn 16.6%, and based on its
systematic risk, it should earn 16.6%. It plots on the SML.
The appropriate trading strategy is:
• Short sell Stock A.
• Buy Stock B.
• Buy, sell, or ignore Stock C.
We can do this same analysis graphically. The expected return/beta combinations of all
three stocks are graphed in the following figure relative to the SML.
Identifying Mispriced Securities
Remember, allstocks should plot on the SML; anystock not plotting on the SML is mispriced.
Notice that Stock A falls below the SML, Stock B lies above the SML, and Stock C is on the
SML. If you plot a stock’s expectedreturn and it falls below the SML, the stock is
overpriced. That is, the stock's expected return is too low given itssystematic risk. If a stock
plots above the SML, it is underpriced and is offering an expected return greater than
required for its systematic risk. If it plots on the SML, the stock is properly priced.
A
C
B
E (R)
7
Beta risk
SML
0.8 1 1.2
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Because the equation of the SML is thecapital assetpricing model, you can determine if a
stock is over- or underpriced graphically or mathematically. Your answers willalways be
the same.
When we evaluate the performance of a portfolio with risk that differs from that of a
benchmark, we need to adjust the portfolio returns for the risk of the portfolio. There
are several measures of risk-adjusted returns that are used to evaluate relative portfolio
One such measure is the Sharpe ratio
The Sharpe ratio of a portfolio is its excess returns per unit of total portfolio risk, and
higher Sharpe ratios indicate better risk-adjusted portfolio performance. Note that this
is a slope measure and, as illustrated in Figure 9, the Sharpe ratios of all portfolios
along the CML are the same. Because the Sharpe ratio uses total risk, rather than
systematic risk, it accounts for any unsystematic risk that the portfolio manager has taken.
Note that the value of the Sharpe ratiois only useful for comparison with the Sharpe ratio of
another portfolio.
In Figure 10, we illustrate that the Sharpe ratio is the slope of the CAL for the portfolio
and can be compared to the slope of the CML, which is the Sharpe ratio for any portfolio
along the CML.
Figure 10: Sharpe Ratios as Slopes
E (R)
Rf
RPI
RM
RP2
P1
P2
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~--~
The M-squared (M2) measure produces the same portfolio rankings as the Sharpe ratiobut is
stated in percentage terms. It is calculated as
The intuition of this measure is that the first term is the excess return on a Portfolio P*,
constructed by taking a leveraged position in Portfolio P so that P* has the same total
risk, M, as the market portfolio. As shown in Figure 11, the excess return on such a
leveraged portfolio is greater than the return on the market portfolio by the vertical
distance M2.
Figure 11: M-squared for a Portfolio
Two measures of risk-adjusted returns based on systematic risk (beta) rather than totalrisk
are theTreynor measure and Jensen's alpha. They are similar to the Sharpe ratio and M2 in
that the Treynor measure is based on slope and Jensen's alpha is a measure of percentage
returns in excess of those from a portfolio that has the same beta but lies on the SML.
The Treynor measure is calculated as , interpreted as excess returns per unit of
systematic risk, and represented by the slope of a line as illustrated in Figure 12.
Jensen's alpha for Portfolio Pi calculated as = R - [Rf + βp(RM - Rf)] and is the
percentage portfolio return above that of a portfolio (or security) with the same beta as
the portfolio that lies on the SML, as illustrated in Figure 12.
E (R)
Rf
RP
RM
P
M
P*
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Figure 12: Treynor Measure and Jensen’s Alpha
Whether risk adjustment should be based on total risk or systematic risk depends on
whether a fund bears the nonsystematic risk of a manager's portfolio. If a single manager
is used, then the total risk (including any nonsystematic risk) is the relevant measure
and risk adjustment using total risk, as with the Sharpe and M2 measures, is appropriate. If
a fund usesmultiple managers so that the overall fund portfolio is well diversified (has no
nonsystematic risk), then performance measures based on systematic (beta) risk, such as the
Treynor measure and Jensen's alpha, are appropriate.
These measures of risk-adjusted returns areoften used to compare theperformance of actively
managed funds to passively managed funds. Note in Figures 10 and 11 that portfolios that lie
above the CML have Sharpe ratios greater than those of any portfolios along the CML and
have positive M2 measures. Similarly, in Figure 12, we can see that portfolios that lie above
the SML have Treynor measures greater than those of any security or portfolio that lies along
the SML and also have positive values for Jensen's alpha.
One final note of caution isthat estimating the values needed to apply these theoretical models
and performance measures is often difficult and is done with error. The expected return on the
market, and thus the market risk premium, may not be equal to its average historical value.
Estimating security and portfolio betas is done with error as well.
Jensen’s alpha
E (R)
Rf
RP
RM
P
1
M
SML
Slope = Treynor measure for
Portfolio P
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4.3 Portfolio planning and construction
Aninvestment manager isveryunlikelytoproduce agoodresultforaclientwithout
understandingthat client’sneeds,circumstances, andconstraints.
Awritten investmentpolicy statementwilltypicallybeginwith
theinvestor'sgoalsintermsofriskandreturn. These should bedetermined j o i n t l y ,
asthegoalsofhighreturnsandlowrisk(whilequitepopular) arelikelytobemutually
exclusiveinpractice. Investorexpectations intermsofreturns mustbecompatible
wi th investor'stolerance forrisk(uncertaintyabout portfolioperformance).
Themajorcomponents ofanIPStypicallyaddressthefollowing:
DescriptionofClientcircumstances, s i t ua t ion , a n d investment object ives .
Statementof thePurposeoftheIPS.
StatementofDutiesandResponsibilitiesofinvestment manager, custodianofassets,
andtheclient.
Procedures toupdate IPSandtorespond tovariouspossiblesituations.
Investment Objectivesderivedfromcommunicationswith theclient.
Investment Constraintsthat mustbeconsidered intheplan.
Investment Guidelinessuchashowthepolicywillbeexecuted, assettypespermitted,
andleveragetobeused.
Evaluationof Performance,thebenchmark p o r t fo l i o forevaluating
investmentperformance, a n d other informationonevaluation ofinvestment r e s u l t s .
Appendicescontaininginformationonstrategic (baseline)assetallocation
andpermitteddeviations frompolicyportfolio al locations , aswellashowandwhenthe
portfolio al locationsshouldberebalanced.
Inanycase,theIPSwill,ataminimum,contain aclearstatement o f client circumstances
andconstraints, a n investment strategybasedonthese,andsome benchmark
a g a i n s t whichtoevaluatetheaccount performance.
Theriskobjectives inanIPSmaytakeseveralforms.Anabsolute r iskobjective
mightbeto"havenodecreaseinportfolio valueduring any12-month p e r i o d ” orto"not
decreaseinvaluebymorethan2%atanypoint overany12-month p e r i o d ." Low
absolutepercentage riskobjectivessuchasthesemayresultinportfolios madeupof securitiesthat
offerguaranteed re turns (e.g., U.S.Treasurybills).
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Absolute riskobjectivescanalsobestated intermsoftheprobability o f specificportfolio
results,percentage lossesordollarlosses,rather thanstrictlimitsonportfolio
results.Examplesareasfollows:
"Nogreaterthan a5%probability o f returns below-5% i n any12-month p e r i o d ."
"Nogreaterthan a4%probability o f alossofmorethan $20,000 overany12-month p e r i o d ."
Anabsolute returnobjectivemaybestatedinnominal terms, suchas"anoverallreturn
ofatleast6%perannum,"orinrealreturns, suchas"areturn of3%morethan theannual
inflationrateeachyear."
Relativeriskobjectives relatetoaspecificbenchmark andcanalsobestrict, suchas, "Returns
willnotbeless than 12-montheuroLIBOR overany12-monthperiod," or
statedintermsofprobability, suchas,"Nogreaterthan a5%probability ofreturns
morethan4%belowthereturn ontheMSCIWorld Indexoverany12-month period."
Return objectivescanberelativetoabenchmark p o r t fo l io re tu rn , suchas,"Exceedthereturn
ontheS&P500Indexby2%perannum."Forabank,thereturn
objectivemayberelativetothebank'scostoffunds (deposit rate).While itispossibleforan
institutiontousereturns onpeerportfolios, suchasanendowment w i t h astated
objectivetobeinthetopquartile ofendowment f u n d returns, peerperformance benchmarks
suffer fromnotbeinginvestableportfolios. There is no way to match thisinvestment return
byportfolio construction before the fact.
Inanyevent,theaccount managermust makesurethat thestatedriskandreturn
objectivesarecompatible, g i v e n therealityofexpectedinvestment r e s u l t s and uncertainty
overtime.
Aninvestor'sability tobearriskdepends onfinancialcircumstances. Longerinvestment horizons
(20yearsrather than 2years),greaterassetsversusliabilities (morewealth), moreinsurance
againstunexpected occurrences, andasecurejoballsuggestagreater abilitytobearinvestment
riskintermsofuncertaintyabout periodic investment performance.
Aninvestor'swillingness t o bearriskisbasedprimarily ontheinvestor'sattitudes andbeliefsabout
investments( variousassettypes).Theassessmentofaninvestor'sattitude about
riskisquitesubjectiveandissometimes donewith ashort questionnairet h a t attempts
t o categorizetheinvestor'sriskaversionorrisktolerance.
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When theadviser'sassessmentsofaninvestor'sabilityandwillingness totakeinvestment
riskarecompatible, t h e r e isnorealproblem selectinganappropriate l e v e l ofinvestment
risk.Iftheinvestor'swillingness totakeoninvestment r i s k ishighbuttheinvestor's
abilitytotakeonriskislow,thelowabilitytotakeoninvestment r i skwillprevailinthe
adviser'sassessment.
In situations where ability is high but willingness is low, the adviser may attempt to educate
the investor about investment risk and correct any misconceptions that may be contributing
to the investor's low stated willingness to take on investment risk. However, the adviser's
job is not to change theinvestor'spersonality
characteristics thatcontributetoalowwillingness totakeoninvestment r i sk .The approach
willmostlikelybeto conform totheloweroftheinvestor'sabilityorwillingness
tobearrisk,asconstructingaportfolio withalevelofriskthat theclientisclearlyuncomfortable
withwillnotlikelyleadtoagoodoutcome intheinvestor'sview investmentconstraintsinclude
theinvestor'sliquidity needs,timehorizon, tax considerations,legalandregulatory
constraints, a n d unique needsandpreferences.
TÀI LIỆU THAM KHẢO
1. Schweser Notes CFA Level 1, Kaplan Schweser, 2011
2. CFA Program Curriculum Level 1, CFA Institute, 2011
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