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Essentials of Investments
© 2001 The McGraw-Hill Companies, Inc. All rights reserved.
Fourth Edition
Irwin / McGraw-Hill
Bodie • Kane • Marcus1
Chapter 13
Equity Valuation

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Fundamental Stock Analysis: Models of Equity Valuation
• Basic Types of Models– Balance Sheet Models– Dividend Discount Models– Price/Earning Ratios
• Estimating Growth Rates and Opportunities

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Intrinsic Value and Market Price
• Intrinsic Value– Self assigned Value– Variety of models are used for estimation
• Market Price– Consensus value of all potential traders
• Trading Signal– IV > MP Buy– IV < MP Sell or Short Sell– IV = MP Hold or Fairly Priced

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Dividend Discount Models:General Model
V Dk
ot
tt
( )11
• V0 = Value of Stock• Dt = Dividend• k = required return

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No Growth Model
V Dk
o
• Stocks that have earnings and dividends that are expected to remain constant
• Preferred Stock

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No Growth Model: Example
E1 = D1 = $5.00
k = .15V0 = $5.00 / .15 = $33.33
V Dk
o

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Constant Growth Model
Vo D gk go
( )1
• g = constant perpetual growth rate

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Constant Growth Model: Example
Vo D gk go
( )1
E1 = $5.00b = 40% k = 15%
(1-b) = 60% D1 = $3.00 g = 8%
V0 = 3.00 / (.15 - .08) = $42.86

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Estimating Dividend Growth Rates
g ROE b
• g = growth rate in dividends• ROE = Return on Equity for the firm• b = plowback or retention percentage rate
– (1- dividend payout percentage rate)

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Shifting Growth Rate Model
V D gk
D gk g k
o o
t
tt
TT
T
( )
( )( )
( )( )11
11
1
1
2
2
• g1 = first growth rate
• g2 = second growth rate
• T = number of periods of growth at g1

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Shifting Growth Rate Model: Example
D0 = $2.00 g1 = 20% g2 = 5%
k = 15% T = 3 D1 = 2.40
D2 = 2.88 D3 = 3.46 D4 = 3.63
V0 = D1/(1.15) + D2/(1.15)2 + D3/(1.15)3 +
D4 / (.15 - .05) ( (1.15)3
V0 = 2.09 + 2.18 + 2.27 + 23.86 = $30.40

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Specified Holding Period Model
01
12
21 1 1V Dk
Dk
D Pk
N NN
( ) ( ) ( )...
• PN = the expected sales price for the stock at time N
• N = the specified number of years the stock is expected to be held

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Partitioning Value: Growth and No Growth Components
V Ek
PVGO
PVGO D gk g
Ek
o
o
1
11( )( )
• PVGO = Present Value of Growth Opportunities
• E1 = Earnings Per Share for period 1

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Partitioning Value: Example
• ROE = 20% d = 60% b = 40%
• E1 = $5.00 D1 = $3.00 k = 15%
• g = .20 x .40 = .08 or 8%

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V
NGV
PVGO
o
o
315 08
86
515
33
86 33 52
(. . )$42.
.$33.
$42. $33. $9.
Partitioning Value: Example
VVoo = value with growth = value with growthNGVNGVoo = no growth component value = no growth component valuePVGO = Present Value of Growth OpportunitiesPVGO = Present Value of Growth Opportunities

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Price Earnings Ratios
• P/E Ratios are a function of two factors– Required Rates of Return (k)– Expected growth in Dividends
• Uses– Relative valuation– Extensive Use in industry

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P/E Ratio: No expected growth
P Ek
PE k
01
0
1
1
• E1 - expected earnings for next year– E1 is equal to D1 under no growth
• k - required rate of return

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P/E Ratio with Constant Growth
PD
k gE b
k b ROEPE
bk b ROE
01 1
0
1
1
1
( )( )
( )
• b = retention ration• ROE = Return on Equity

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Numerical Example: No Growth
E0 = $2.50 g = 0 k = 12.5%
P0 = D/k = $2.50/.125 = $20.00
PE = 1/k = 1/.125 = 8

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Numerical Example with Growth
b = 60% ROE = 15% (1-b) = 40%E1 = $2.50 (1 + (.6)(.15)) = $2.73
D1 = $2.73 (1-.6) = $1.09
k = 12.5% g = 9%P0 = 1.09/(.125-.09) = $31.14
PE = 31.14/2.73 = 11.4PE = (1 - .60) / (.125 - .09) = 11.4

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Chapter 10
Bond Prices and Yields

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Bond Characteristics
• Face or par value• Coupon rate
– Zero coupon bond• Compounding and payments
– Accrued Interest• Indenture

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Provisions of Bonds
• Secured or unsecured• Call provision• Convertible provision• Put provision (putable bonds)• Floating rate bonds• Sinking funds

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Default Risk and Ratings
• Rating companies– Moody’s Investor Service– Standard & Poor’s– Duff and Phelps– Fitch
• Rating Categories– Investment grade– Speculative grade

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Factors Used by Rating Companies
• Coverage ratios• Leverage ratios• Liquidity ratios• Profitability ratios• Cash flow to debt

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Bond Pricing
P Cr
ParValuer
B tT
t
TT
T
( ) ( )1 11
PB = Price of the bond
Ct = interest or coupon payments
T = number of periods to maturityr = semi-annual discount rate or the semi-annual
yield to maturity

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CCtt = 40 (SA)= 40 (SA)PP = 1000= 1000TT = 20 periods= 20 periodsrr = 3% (SA)= 3% (SA)
PB = $1,148.77
Solving for Price: 10-yr, 8% Coupon Bond, Face = $1,000
tt=1=1++
2020== PPBB 4040 11
(1+.03)) t 1000 1(1+.03) 20

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Bond Prices and Yields
Prices and Yields (required rates of return) have an inverse relationship
• When yields get very high the value of the bond will be very low
• When yields approach zero, the value of the bond approaches the sum of the cash flows

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Prices and Coupon Rates
Price
Yield

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Approximate Yield to Maturity
YTM = (Avg. Income) / (Avg. Price)Avg. Income = Int. +(Par-Price) / Yrs to maturityAvg. Price = (Price + Par) / 2
Using the earlier exampleAvg. Income = 80 + (1000-1149)/10 = 65.10Avg. Price = (1000 + 1149)/2 = 1074.50Approx. YTM = 65.10/1074.50 = .0606 or
6.06%Actual YTM = 6.00%

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Term Structure of Interest Rates
• Relationship between yields to maturity and maturity
• Yield curve - a graph of the yields on bonds relative to the number of years to maturity– Usually Treasury Bonds– Have to be similar risk or other factors
would be influencing yields

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Yield Curves
Yields
Maturity
Upward Upward SlopingSloping
Downward Downward SlopingSloping

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Theories of Term Structure
• Expectations• Liquidity Preference
– Upward bias over expectations• Market Segmentation
– Preferred Habitat

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Chapter 11
Managing Fixed-Income Investments

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Managing Fixed Income Securities: Basic Strategies
• Active strategy– Trade on interest rate predictions– Trade on market inefficiencies
• Passive strategy– Control risk– Balance risk and return

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Bond Pricing Relationships
• Inverse relationship between price and yield
• An increase in a bond’s yield to maturity results in a smaller price decline than the gain associated with a decrease in yield
• Long-term bonds tend to be more price sensitive than short-term bonds

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Bond Pricing Relationships (cont.)
• As maturity increases, price sensitivity increases at a decreasing rate
• Price sensitivity is inversely related to a bond’s coupon rate
• Price sensitivity is inversely related to the yield to maturity at which the bond is selling

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Duration• A measure of the effective maturity of a bond• The weighted average of the times until each payment is received,
with the weights proportional to the present value of the payment• Duration is shorter than maturity for all bonds except zero coupon
bonds• Duration is equal to maturity for zero coupon bonds

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Duration: Calculation
t ttw CF y ice ( )1 Pr
D t wt
T
t
1
CF Cash Flow for period tt

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Duration Calculation
8%Bond
Timeyears
Payment PV of CF(10%)
Weight C1 XC4
1 80 72.727 .0765 .0765
2 80 66.116 .0690 .1392
Sum3 1080 811.420
950.263
.8539
1.0000
2.5617
2.7774

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Duration/Price Relationship
Price change is proportional to duration and not to maturity
P/P = -D x [(1+y) / (1+y)D* = modified durationD* = D / (1+y)P/P = - D* x y

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Uses of Duration
• Summary measure of length or effective maturity for a portfolio
• Immunization of interest rate risk (passive management)– Net worth immunization– Target date immunization
• Measure of price sensitivity for changes in interest rate

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Chapter 16
Options Markets

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Option Terminology
• Buy - Long • Sell - Short• Call• Put • Key Elements
– Exercise or Strike Price– Premium or Price– Maturity or Expiration

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Market and Exercise Price Relationships
In the Money - exercise of the option would be profitableCall: market price>exercise pricePut: exercise price>market price
Out of the Money - exercise of the option would not be profitableCall: market price>exercise pricePut: exercise price>market price
At the Money - exercise price and asset price are equal

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American vs European Options
American - the option can be exercised at any time before expiration or maturity
European - the option can only be exercised on the expiration or maturity date

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Different Types of Options
• Stock Options• Index Options• Futures Options• Foreign Currency Options• Interest Rate Options

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Payoffs and Profits on Options at Expiration - Calls
Notation Stock Price = ST Exercise Price = XPayoff to Call Holder
(ST - X) if ST >X 0if ST < X
Profit to Call HolderPayoff - Purchase Price

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Payoffs and Profits on Options at Expiration - Calls
Payoff to Call Writer - (ST - X) if ST >X
0 if ST < XProfit to Call Writer
Payoff + Premium

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ProfitProfit
Stock PriceStock Price
0
Call WriterCall Writer
Call HolderCall Holder
Profit Profiles for CallsProfit Profiles for Calls

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Payoffs and Profits at Expiration - Puts
Payoffs to Put Holder0 if ST > X
(X - ST) if ST < X
Profit to Put Holder Payoff - Premium

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Payoffs and Profits at Expiration - Puts
Payoffs to Put Writer0 if ST > X
-(X - ST) if ST < X
Profits to Put WriterPayoff + Premium

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Profit Profiles for PutsProfit Profiles for Puts
0
Profits
Stock Price
Put Writer
Put Holder

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Equity, Options & Leveraged Equity - Text Example
Investment Strategy Investment
Equity only Buy stock @ 80 100 shares $8,000
Options only Buy calls @ 10 800 options $8,000
Leveraged Buy calls @ 10 100 options $1,000equity Buy T-bills @ 2% $7,000
Yield

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Equity, Options & Leveraged Equity - Payoffs
Microsoft Stock PriceMicrosoft Stock Price
$75$75 $80$80 $100$100
All StockAll Stock $7,500$7,500 $8,000$8,000 $10,000$10,000
All OptionsAll Options $0$0 $0$0 $16,000$16,000
Lev Equity Lev Equity $7,140$7,140 $7,140$7,140 $9,140 $9,140

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Equity, Options & Leveraged Equity - Rates of Return
Microsoft Stock PriceMicrosoft Stock Price
$75$75 $80 $80 $100$100
All StockAll Stock -6.25%-6.25% 0% 0% 25% 25%
All OptionsAll Options -100% -100%-100% -100% 100%100%
Lev Equity Lev Equity -10.75% -10.75%-10.75% -10.75% 14.25%14.25%

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Put-Call Parity Relationship
ST < X ST > X
Payoff for
Call Owned 0 ST - X
Payoff for
Put Written-( X -ST) 0
Total Payoff ST - X ST - X

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Payoff of Long Call & Short Put
Long Call
Short Put
Payoff
Stock Price
Combined =Leveraged Equity

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Arbitrage & Put Call Parity
Since the payoff on a combination of a long call and a short put are equivalent to leveraged equity, the prices must be equal.
C - P = S0 - X / (1 + rf)T
If the prices are not equal arbitrage will be possible

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Put Call Parity - Disequilibrium Example
Stock Price = 110 Call Price = 17Put Price = 5 Risk Free = 10.25%Maturity = .5 yr X = 105
C - P > S0 - X / (1 + rf)T
17- 5 > 110 - (105/1.05) 12 > 10
Since the leveraged equity is less expensive, acquire the low cost alternative and sell the high cost alternative

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Put-Call Parity Arbitrage
ImmediateImmediate Cashflow in Six MonthsCashflow in Six MonthsPositionPosition CashflowCashflow SSTT<105<105 SSTT>> 105 105
Buy StockBuy Stock -110-110 S STT S STT
BorrowBorrowX/(1+r)X/(1+r)TT = 100 = 100 +100+100 -105-105 -105-105
Sell CallSell Call +17+17 0 0 -(S-(STT-105)-105)
Buy PutBuy Put -5 -5 105-S105-STT 0 0
TotalTotal 22 0 0 0 0

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Option Strategies
Protective PutLong Stock Long Put
Covered Call Long StockShort Call
Straddle (Same Exercise Price)Long Call Long Put

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Option Strategies
Spreads - A combination of two or more call options or put options on the same asset with differing exercise prices or times to expirationVertical or money spread
Same maturityDifferent exercise price
Horizontal or time spreadDifferent maturity dates

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Chapter 17
Option Valuation

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Option Values
• Intrinsic value - profit that could be made if the option was immediately exercised– Call: stock price - exercise price– Put: exercise price - stock price
• Time value - the difference between the option price and the intrinsic value

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Time Value of Options: Call
Option value
XStock Price
Value of Call Intrinsic Value
Time value

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Factors Influencing Option Values: Calls
Factor Effect on valueStock price increasesExercise price decreasesVolatility of stock price increasesTime to expiration increasesInterest rate increasesDividend Rate decreases

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Black-Scholes Option Valuation
Co = Soe-TN(d1) - Xe-rTN(d2)
d1 = [ln(So/X) + (r – + 2/2)T] / (T1/2)
d2 = d1 - (T1/2)
whereCo = Current call option value.
So = Current stock price
N(d) = probability that a random draw from a normal dist. will be less than d.

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Black-Scholes Option Valuation
X = Exercise price. = Annual dividend yield of underlying stocke = 2.71828, the base of the nat. log.r = Risk-free interest rate (annualizes
continuously compounded with the same maturity as the option.
T = time to maturity of the option in years.ln = Natural log functionStandard deviation of annualized cont.
compounded rate of return on the stock

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Call Option Example
So = 100 X = 95
r = .10 T = .25 (quarter)= .50 = 0d1 = [ln(100/95)+(.10-0+(5 2/2))]/(5.251/2)
= .43 d2 = .43 - ((5.251/2)
= .18

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Probabilities from Normal Dist.
N (.43) = .6664Table 17.2
d N(d) .42 .6628 .43 .6664 Interpolation .44 .6700

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Probabilities from Normal Dist.
N (.18) = .5714Table 17.2
d N(d) .16 .5636 .18 .5714 .20 .5793

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Call Option Value
Co = Soe-TN(d1) - Xe-rTN(d2)Co = 100 X .6664 - 95 e- .10 X .25 X .5714
Co = 13.70
Implied VolatilityUsing Black-Scholes and the actual price
of the option, solve for volatility.Is the implied volatility consistent with the
stock?

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Put Option Value: Black-Scholes
P=Xe-rT [1-N(d2)] - S0e-T [1-N(d1)]
Using the sample dataP = $95e(-.10X.25)(1-.5714) - $100 (1-.6664)P = $6.35

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Put Option Valuation: Using Put-Call Parity
P = C + PV (X) - So
= C + Xe-rT - So
Using the example dataC = 13.70 X = 95 S = 100r = .10 T = .25P = 13.70 + 95 e -.10 X .25 - 100P = 6.35

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Using the Black-Scholes Formula
Hedging: Hedge ratio or delta The number of stocks required to hedge against
the price risk of holding one optionCall = N (d1)
Put = N (d1) - 1
Option ElasticityPercentage change in the option’s value given a 1% change in the value of the underlying stock

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Portfolio Insurance - Protecting Against Declines in Stock Value
• Buying Puts - results in downside protection with unlimited upside potential
• Limitations – Tracking errors if indexes are used for the
puts– Maturity of puts may be too short– Hedge ratios or deltas change as stock
values change

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Chapter 18
Futures Markets

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Futures and Forwards
• Forward - an agreement calling for a future delivery of an asset at an agreed-upon price
• Futures - similar to forward but feature formalized and standardized characteristics
• Key difference in futures– Secondary trading - liquidity– Marked to market– Standardized contract units– Clearinghouse warrants performance

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Key Terms for Futures Contracts
• Futures price - agreed-upon price at maturity
• Long position - agree to purchase• Short position - agree to sell• Profits on positions at maturity
Long = spot minus original futures priceShort = original futures price minus spot

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Types of Contracts
• Agricultural commodities• Metals and minerals (including energy
contracts)• Foreign currencies• Financial futures
Interest rate futuresStock index futures

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Trading Mechanics
• Clearinghouse - acts as a party to all buyers and sellers.– Obligated to deliver or supply delivery
• Closing out positions– Reversing the trade– Take or make delivery– Most trades are reversed and do not
involve actual delivery

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Margin and Trading Arrangements
Initial Margin - funds deposited to provide capital to absorb losses
Marking to Market - each day the profits or losses from the new futures price and reflected in the account.
Maintenance or variance margin - an established value below which a trader’s margin may not fall.

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Margin and Trading Arrangements
Margin call - when the maintenance margin is reached, broker will ask for additional margin funds
Convergence of Price - as maturity approaches the spot and futures price converge
Delivery - Actual commodity of a certain grade with a delivery location or for some contracts cash settlement

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Trading Strategies
• Speculation - – short - believe price will fall– long - believe price will rise
• Hedging -– long hedge - protecting against a rise in
price– short hedge - protecting against a fall in
price

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Basis and Basis Risk
• Basis - the difference between the futures price and the spot price– over time the basis will likely change and
will eventually converge• Basis Risk - the variability in the basis
that will affect profits and/or hedging performance

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Futures Pricing
• Spot-futures parity theorem - two ways to acquire an asset for some date in the future– Purchase it now and store it– Take a long position in futures– These two strategies must have the same
market determined costs

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Parity Example
Stock that pays no cash dividend– no storage costs– no seasonal patterns in prices
Strategy 1: Buy the stock now and hold it until time T
Strategy 2: Put funds aside today to perform on a futures contract for delivery at time T that is acquired today

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Parity Example OutcomesParity Example Outcomes
Strategy A: Strategy A: ActionAction Initial flowsInitial flows Flows at TFlows at T
Buy stockBuy stock -S-Soo SSTT
Strategy B:Strategy B: ActionAction Initial flowsInitial flows Flows at TFlows at T
Long futuresLong futures 00 SSTT - F - FOO
Invest in BillInvest in BillFFOO(1+r(1+rff))TT - F - FOO(1+r(1+rff))TT FFOO
Total for B Total for B - F - FOO(1+r(1+rff))TT SSTT

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Price of Futures with Parity
Since the strategies have the same flows at time T
FO / (1 + rf)T = SO
FO = SO (1 + rf)T
The futures price has to equal the carrying cost of the stock

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Chapter 9
The Efficient Market Hypothesis

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Efficient Market Hypothesis (EMH)
• Do security prices reflect information ?• Why look at market efficiency
– Implications for business and corporate finance
– Implications for investment

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• Random Walk - stock prices are random– Actually submartingale
• Expected price is positive over time• Positive trend and random about the trend
Random Walk and the EMH

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Security Security PricesPrices
TimeTime
Random Walk with Positive TrendRandom Walk with Positive Trend

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• Why are price changes random?– Prices react to information– Flow of information is random– Therefore, price changes are random
Random Price Changes

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EMH and Competition
• Stock prices fully and accurately reflect publicly available information
• Once information becomes available, market participants analyze it
• Competition assures prices reflect information

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Forms of the EMH
• Weak• Semi-strong• Strong

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Types of Stock Analysis
• Technical Analysis - using prices and volume information to predict future prices– Weak form efficiency & technical analysis
• Fundamental Analysis - using economic and accounting information to predict stock prices– Semi strong form efficiency & fundamental
analysis

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• Active Management– Security analysis– Timing
• Passive Management– Buy and Hold– Index Funds
Implications of Efficiency for Active or Passive Management

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Even if the market is efficient a role exists for portfolio management
• Appropriate risk level• Tax considerations• Other considerations
Market Efficiency and Portfolio Management