Session 4: Efficient Diversification These notes are based on chapter 6 of Bodie, Kane, and Marcus (2019), Essentials of Investments, Eleventh Edition pg 207 1 Systematic and unsystematic risk • Market/Systematic(beyond our control ie: inflation rate/oil prices/ unemployment rate)/Non-diversifiable Risk • Risk factors common to whole economy • Unique/Firm-Specific/Nonsystematic/ Diversifiable Risk • Risk that can be eliminated by diversification • Ie: within our control • Issue in R and D team, internal problem 2 Figure 1 Risk as Function of Number of Stocks in Portfolio 3 Figure 2 Risk versus Diversification 4 Covariance, Correlation and portfolio risk • Portfolio risk depends on covariance between returns of assets ( 2 shares one from A and B) how returns of these two move along? Uncertainties of return for these two assets move along • Expected return on two-security portfolio • • • • E (rp ) = W1r1 + W2 r2 W1 = Proportion of funds in security 1 W2 = Proportion of funds in security 2 r1 = Expected return on security 1 r 2 = Expected return on security 2 5 Asset Allocation with Two Risky Assets • Covariance Calculations – direction return of assets (risk move) S Cov(rS , rB ) = ∑ p(i )[rS (i ) − E (rS )][rB (i ) − E (rB )] i =1 • Correlation Coefficient – strength of that movement (-1 to +1) negative will reduce overall risk ρ SB Cov(rS , rB ) = σS × σB Cov(rS , rB ) = ρ SB σ S σ B 6 Spreadsheet 1 Expected return 7 • E( r ) = p x r (column b x c) • E( r ) s = 10% • E( r ) b = 5% • - 37 – 10 = - 47 (deviation from expected return) 8 Spreadsheet 2 Variance of Returns 9 Spreadsheet 3 Portfolio Performance (add 2 steps : use w1r1 method to calculate portfolio, then use E ( r ) = pxr 10 • -20.2 • = E( r) = w1 x r1 + w2 x r2 • = 0.4 x (-37) + (0.6 x -9) • = -20.2 11 Spreadsheet 4 Return Covariance (more accurate than stan.deviation) 12 A Portfolio with Two Risky Assets • RoR: Weighted average of returns on components, with investment proportions as weights • ERR: Weighted average of expected returns on components, with portfolio proportions as weights Variance of RoR: *** standard deviation for portfolio p = correlation 13 Figure 3 Efficient Frontier****** 14 The Optimal Risky Portfolio with a Risk-Free Asset • Slope of CAL is Sharpe Ratio also call reward to volatility ratio of Risky Portfolio • Optimal Risky Portfolio • Best combination of risky and safe assets to form portfolio 15 The Optimal Risky Portfolio with a Risk-Free Asset • Calculating Optimal Risky Portfolio (weightage) • Two risky assets [ E (rB ) − rf ]σ S2 − [ E (rs ) − rf ]σ Bσ S ρ BS wB = [ E (rB ) − rf ]σ S2 + [ E (rs ) − rf ]σ B2 − [ E (rB ) − rf + E (rs ) − rf ]σ Bσ S ρ BS wS = 1 − wB 16 Efficient Diversification with Many Risky Assets • Efficient Frontier of Risky Assets • Graph representing set of portfolios that maximizes expected return at each level of portfolio risk • Three methods • Maximize risk premium for any level standard deviation • Minimize standard deviation for any level risk premium • Maximize Sharpe ratio for any standard deviation or risk premium 17 Figure 4 Efficient Frontier: Risky and Individual Assets 18 Figure 5 Scatter Diagram for Ford 19 • Steeper ford return is more responsive to the market returns 20 A Single-Index Stock Market include sys and non-sys to estimate risk of a particular security in a portfolio • Index model • Relates stock returns to returns on broad market index & firm-specific factors. One common sys factor responsible to all covariance in all stock return and all other variability due to firm specific factors • Excess return • RoR in excess of risk-free rate • Beta (ford) systematic (the triangular slope) • Sensitivity of security’s returns to market factor • Firm-specific or residual risk • Component of return variance independent of market factor • Alpha (ie: market 4%, ford 4.3%, alpha 0.3%) • Stock’s expected return beyond that induced by market index 21 • 100 securities – 100 expected return and s.d • Cov = 100 x 99/ 2 = 4950 22 A Single-Index Stock Market • Excess Return • πΉπΉππ = π·π·ππ πΉπΉπ΄π΄ + πΆπΆππ + ππππ Rm = market return Alpha and ei : residual risk (non-systematic risk) Where: • βππ π π ππ : component of return due to movements in overall market • βππ : security’s responsiveness to market • αππ : stock’s expected excess return if market factor is neutral, i.e. market-index excess return is zero • ππππ : Component attributable to unexpected events relevant only to this security (firm-specific) 23 A Single-Index Stock Market • Statistical and Graphical Representation of Single-Index Model (want systematic) • Ratio of systematic variance to total variance • 24 A Single-Index Stock Market • Using Security Analysis with Index Model • Information ratio • Ratio of alpha to standard deviation of residual • Active portfolio • Portfolio formed by optimally combining analyzed stocks 25 A Single-Index Stock Market NOT IMPORTANT • Diversification in Single-Index Security Market • In portfolio of n securities with weights • In securities with nonsystematic risk • Nonsystematic portion of portfolio return • • Portfolio nonsystematic variance • 26 A Single-Index Stock Market (no need) • Statistical and Graphical Representation of Single-Index Model • Security Characteristic Line (SCL) • Plot of security’s predicted excess return from excess return of market • Algebraic representation of regression line • 27 Session 7: Bond Prices and Yields These notes are based on chapter 10 and 11 of Bodie, Kane, and Marcus (2019), Essentials of Investments, Eleventh Edition 28 What is bond? • A financial instrument issued by either a company or the central or state governments. • The maturity period of a bond is more than one year • The par value of the bond is returned to the investor at the end of the maturity period • Income to a bond holder is interest which is fixed till maturity 29 Bond Characteristics • Face Value, Par Value • Payment to bondholder at maturity of bond • Coupon Rate • Bond’s annual interest payment per dollar of par value • Zero-Coupon Bond • Pays no coupons, sells at discount, provides only payment of par value at maturity 30 Type of Bonds • Treasury Bonds and Notes • Accrued interest and quoted bond prices • Quoted prices do not include interest accruing between payment dates • Accrued interest = π¨π¨π¨π¨π¨π¨π¨π¨π¨π¨π¨π¨ ππππππππππππ ππππππππππππππ ππ × π«π«π«π«π«π«π«π« ππππππππππ ππππππππ ππππππππππππ ππππππππππππππ π«π«π«π«π«π«π«π« ππππππππππππππππππππ ππππππππππππ ππππππππππππππππ Example: Consider a bond with the following characteristics: Semi-annual payments, coupon rate of 6%, $1,000 par value. If 45 days have passed since the last coupon payment, what is the accrued interest? 45 A.I . = × $30 = $7.42 182 31 Type of Bonds • Corporate Bonds • Call provisions on corporate bonds • Callable bonds: May be repurchased by issuer at specified call price during call period • Convertible bonds • Allow bondholder to exchange bond for specified number of common stock shares 32 Type of Bonds • Corporate Bonds • Puttable bonds • Holder may choose to exchange for par value or to extend for given number of years • Floating-rate bonds • Coupon rates periodically reset according to specified market date 33 Bond Characteristics • Preferred Stock • Commonly pays fixed dividend • Floating-rate preferred stock becoming more popular • Dividends not normally tax-deductible • Corporations that purchase other corporations’ preferred stock are taxed on only 30% of dividends received 34 Type of Bonds • Other Domestic Issuers • State, local governments (municipal bonds) International Bonds • Foreign bonds Issued by borrower in different country than where bond sold Denominated in currency of market country • Eurobonds Denominated in currency (usually that of issuing country) different than that of market 35 Type of Bonds • Premium Bonds • Bonds selling above par value • Discount Bonds • Bonds selling below par value 36 Bond Pricing • Bond value = Present value of coupons + Present par value • Bond value = πΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆ ππ ∑π‘π‘=1 (1+ππ)π‘π‘ • T = Maturity date + ππππππ π£π£π£π£π£π£π£π£π£π£ (1+ππ)ππ • r = discount rate • Bond price = πΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆ × = πΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆ 1 ππ 1− 1 1+ππ ππ + ππππππ π£π£π£π£π£π£π£π£π£π£ × 1 (1+ππ)ππ × π΄π΄π΄π΄π΄π΄π΄π΄π΄π΄π΄π΄π΄π΄ ππππππππππππ ππ, ππ + ππππππ π£π£π£π£π£π£π£π£π£π£ × ππππ ππππππππππππ (ππ, ππ) 37 Bond Pricing: Example • What is the price of the following two bonds: Bond A Bond B Maturity (T) 4 Years 30 Years Coupon Rate (C) 5% 5% Discount Rate (r) 8% 8% Par Value (FV) $1,000 $1,000 Bond A Bond B 1 − (1 + r ) 1 − (1 + r ) −T −T + FV × (1 + r ) PV = C × + FV × (1 + r ) PV = C × r r 1 − (1.08) −30 1 − (1.08) −4 −4 $50 × $50 × = + $1, 000 × (1.08) −30 = + $1, 000 × (1.08) .08 .08 = $165.61 + $735.03 = $900.64 = $562.89 + $99.38=$662.27 −T Present Value of Coupons −T Present Par Value 38 Bond Pricing • Prices fall as market interest rate rises • Interest rate fluctuations are primary source of bond market risk • Bonds with longer maturities more sensitive to fluctuations in interest rate 39 Figure 1 Inverse Relationship between Bond Prices and Yields 40 Table 1 Bond Prices at Different Interest Rates 41 Bond Pricing • Bond Pricing between Coupon Dates • Invoice price = Flat price + Accrued interest • Bond Pricing in Excel • =PRICE (settlement date, maturity date, annual coupon rate, yield to maturity, redemption value as percent of par value, number of coupon payments per year) 42 Bond Yields • Yield to Maturity • Discount rate that makes present value of bond’s payments equal to price. • Current Yield • Annual coupon divided by bond price • Premium Bonds • Bonds selling above par value • Discount Bonds • Bonds selling below par value 43 Spreadsheet 1 Finding Yield to Maturity Semiannual coupons Settlement date Maturity date Annual coupon rate Bond price (flat) Redemption value (% of face value) Coupon payments per year Yield to maturity (decimal) Annual coupons 1/1/2000 1/1/2030 0.08 127.676 100 2 1/2/2000 1/2/2030 0.08 127.676 100 1 0.0600 0.0599 The formula entered here is =YIELD(B3,B4,B5,B6,B7,B8) 44 Bond Yields • Yield to Call • Calculated like yield to maturity • Time until call replaces time until maturity; call price replaces par value • Premium bonds more likely to be called than discount bonds 45 Bond Yields • Realized Compound Returns versus Yield to Maturity • Realized compound return • Compound rate of return on bond with all coupons reinvested until maturity • Reinvestment rate risk • Uncertainty surrounding cumulative future value of reinvested coupon payments 46 Bond Yields • Yield to Maturity versus Holding Period Return (HPR) • Yield to maturity measures average RoR if investment is held until bond matures • HPR is RoR over particular investment period; depends on market price at end of period 47 Realized compound yield • A two-year bond with par value $1000 making annual coupon payments of $100 is priced at $1000. What is the yield to maturity of the bond? What will the realised compound yield to maturity be if the oneyear interest rate next year turns out to be: • 8% • 10% • 12%? 48 Realized compound yield • As the bond’s price is the same as the par value, the yield to maturity is 10% ($100/$1000). • The realised compound yield for different interest rates is calculated as follws: 49 Realized compound yield • The bond is selling at par value. Its yield to maturity equals the coupon rate, 10%. If the first-year coupon is reinvested at an interest rate of r per cent, then total proceeds at the end of the second year will be 100 × (1 + r) + 1100. Therefore, realised compound yield to maturity will be a function of r as given in the following table: 50 Realized compound yield Realised yield to maturity = r Total proceeds 8% $1208 1208 / 1000 − 1 = 0.0991 = 9.91% 10% $1210 1210 / 1000 − 1 = 0.1000 = 10.00% 12% $1212 1212 / 1000 − 1 = 0.1009 = 10.09% proceeds / 1000 − 1 51 Duration of a bond • Macaulay’s Duration (D) • Measures effective bond maturity • Used to understand the impact of interest rate changes on the bond price • Weighted average of the times until each payment, with weights proportional to the present value of payment • π€π€π‘π‘ = πΆπΆπΆπΆπ‘π‘ /(1+π¦π¦)π‘π‘ π΅π΅π΅π΅π΅π΅π΅π΅ ππππππππππ • π·π· = ∑ππ π‘π‘=1 π‘π‘ × π€π€π‘π‘ 52 Spreadsheet 1 Calculation of Duration of Two Bonds 53 Interest Rate Risk • Change in Bond (ΔP) Price and yield to maturity (y) Δππ • ππ = π·π· × ∗ π·π· 1+π¦π¦ Δ 1+π¦π¦ 1+π¦π¦ • Modified Duration • π·π· = Δππ • ππ Application In the above example, If y of the coupon bond increases by 1%, the bond price will change by 2.78*0.01 = -2.78%. = −π·π· ∗ Δπ¦π¦ 54 Convexity • Convexity • Curvature of price-yield relationship of bond Δππ • ππ = −π·π· ∗ Δπ¦π¦ + 1⁄2 × πΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆ × (Δπ¦π¦)2 • πΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆ = 1 ππ∗(1+π¦π¦)2 ∗ ∑πππ‘π‘=1 πΆπΆπΆπΆπ‘π‘ (π‘π‘ 1+π¦π¦ π‘π‘ + π‘π‘ 2 • Why Do Investors Like Convexity? • More convexity = greater price increases, smaller price decreases when interest rates fluctuate by larger amounts 55 Convexity Example y 4.50% Time Cash flow PV(CF) t+t^2 (t+t^2)*PV(CF) coupon 10% 1 3 2.871 2 5.7416 par value $100 2 3 2.747 6 16.4831 10 3 3 2.629 12 31.5467 4 3 2.516 20 50.3137 5 3 2.407 30 72.2206 6 3 2.304 42 96.7549 7 3 2.204 56 123.4512 8 3 2.110 72 151.8880 9 3 2.019 90 181.6842 10 103 66.325 110 7295.7006 n 88.131 convexity 8025.7846 83.39242 56 Debrief • Types of bonds • Yield to maturity • Realized compound yield • Duration and convexity 57 Session 8: Valuation of Equities These notes are based on chapter 13 of Bodie, Kane, and Marcus (2019), Essentials of Investments, Eleventh Edition 58 Valuation by comparables • Book Value • Net worth of common equity according to a firm’s balance sheet • Limitations of Book Value • Liquidation value: Net amount realized by selling assets of firm and paying off debt • Replacement cost: Cost to replace firm’s assets • Tobin’s q: Ratio of firm’s market value to replacement cost 59 Dividend discount models • Intrinsic Value • ππ0 = πΈπΈ π·π·1 +πΈπΈ(ππ1 ) 1+ππ • ππ0 = π·π·1 1+ππ • For holding period H + π·π·2 (1+ππ)2 + π·π·π»π» +πππ»π» β―+ (1+ππ)π»π» • Dividend Discount Model (DDM) • Formula for intrinsic value of firm equal to present value of all expected future dividends 60 Dividend Discount Models • Constant-Growth DDM • Form of DDM that assumes dividends will grow at constant rate • ππ0 = π·π·1 ππ−ππ • Implies stock’s value greater if: • Larger dividend per share • Lower market capitalization rate, k • Higher expected growth rate of dividends 61 Dividend Discount Models • For stock with market price = intrinsic value, expected holding period return • πΈπΈ ππ = π·π·π·π·π·π·π·π·π·π·π·π·π·π·π·π· π¦π¦π¦π¦π¦π¦π¦π¦π¦π¦ + πΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆ ππππππππππ π¦π¦π¦π¦π¦π¦π¦π¦π¦π¦ π·π·1 • ππππ + ππ1 −ππ0 ππ0 = π·π·1 ππ0 + ππ 62 Dividend Discount Models: Two Stage Example • Consider the following information: • The firm’s dividends are expected to grow at g = 20% until t = 3 yrs. • At the start of year four, growth slows to gs= 5%. • The stock just paid a dividend Div0 = $1.00 • Assume a market capitalization rate of k = 12% • What is the price, P0, of this stock? P0 D0 × (1 + g ) D0 × (1 + g )t D0 × (1 + g )t × (1 + g s ) + ... + + t (1 + k ) (1 + k ) (1 + k )t × ( k − g s ) $1× (1 + .2) $1× (1 + .2) 2 $1× (1 + .2)3 D0 × (1 + .2)3 × (1 + .05) = + + + 2 3 (1 + .12) (1 + .12) (1 + .12) (1 + .12)3 × (.12 − .05) = $1.07 + $1.15 + $1.23 + $18.45 = $21.90 63 Present value of growth opportunities • Stock Prices and Investment Opportunities • Dividend payout ratio • Percentage of earnings paid as dividends • Plowback ratio/earnings retention ratio • Proportion of firm’s earnings reinvested in business • Present value of growth opportunities (PVGO) • Price = No-growth value per share + PVGO • ππ0 = πΈπΈ1 ππ + ππππππππ 64 Free Cash Flow Valuation Approaches • Free Cash Flow for Firm (FCFF) • πΉπΉπΉπΉπΉπΉπΉπΉ = πΈπΈπΈπΈπΈπΈπΈπΈ 1 − π‘π‘ππ + π·π·π·π·π·π·π·π·π·π·π·π·π·π·π·π·π·π·π·π·π·π·π·π· − πΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆπΆ ππππππππππππππππππππππππ − πΌπΌπΌπΌπΌπΌπΌπΌπΌπΌπΌπΌπΌπΌπΌπΌ ππππ ππππππ • EBIT = Earnings before interest and taxes • π‘π‘ππ = Corporate tax rate • NWC = Net working capital • Free Cash Flow to Equity Holders (FCFE) • πΉπΉπΉπΉπΉπΉπΉπΉ = πΉπΉπΉπΉπΉπΉπΉπΉ − πΌπΌπΌπΌπΌπΌπΌπΌπΌπΌπΌπΌπΌπΌπΌπΌ ππππππππππππππ × 1 − π‘π‘ππ + πΌπΌπΌπΌπΌπΌπΌπΌπΌπΌπΌπΌπΌπΌπΌπΌπΌπΌ ππππ ππππππ ππππππππ 65 13.5 Free Cash Flow Valuation Approaches • Estimating Terminal Value using Constant Growth Model • πΉπΉπΉπΉπΉπΉπΉπΉ π£π£π£π£π£π£π£π£π£π£ = • ππππ = πΉπΉπΉπΉπΉπΉπΉπΉππ+1 ππππππππ−ππ 1+πΉπΉπΉπΉπΉπΉπΉπΉπ‘π‘ ππ ∑π‘π‘=1 (1+ππππππππ)π‘π‘ + ππππ (1+ππππππππ)ππ • WACC = Weighted average cost of capital 66 FCF Valuation Approaches: FCFF Example • Suppose FCFF = $1 mil for years 1-4 and then is expected to grow at a rate of 3%. Assume WACC = 15% PT FCFF + ∑ t (1 + WACC )T t =1 (1 + WACC ) $1, 000, 000 × 1.03 4 $1, 000, 000 .15 − .03 = ∑ + (1 + .15)t (1 + .15) 4 t =1 = $ 7, 762, 527 = FirmValue T • If 500,000 shares are outstanding, what is the predicted price of this stock if the firm has $5,000,000 of debt? P0 $7, 762, 527-$5,000,000 = $5.53 500, 000 67 Free Cash Flow Valuation Approaches • Market Value of Equity • ππππππππππππ π£π£π£π£π£π£π£π£π£π£ ππππ ππππππππππππ = • ππππ = πΉπΉπΉπΉπΉπΉπΉπΉππ+1 πππΈπΈ −ππ πΉπΉπΉπΉπΉπΉπΉπΉπ‘π‘ ππ ∑π‘π‘=1 (1+πππΈπΈ )π‘π‘ + ππππ (1+πππΈπΈ )ππ 68 FCF Valuation Approaches: FCFE Example • Suppose FCFE = $900,000 for years 1-4 and then is expected to grow at a rate of 3%. Assume ke = 18% PT FCFE + Market Value= of Equity ∑ t t + + (1 ) (1 ) k k t =1 e e T $900, 000 × 1.03 4 $900, 000 .18 − .03 = ∑ + t (1 + .18) 4 t =1 (1 + .18) = $ 2, 500,851 • If there are 500,000 shares outstanding, what is the predicted price of this stock? Why can debt be ignored? = P0 $ 2, 500,851 = $5.00 500, 000 69 Spreadsheet : FCF 70 Debrief • Valuation by comparables • Dividend discount model • Present value of growth opportunities • Free cash flow models 71