Question

In: Finance

In the following year, there is a 10% chance of a bear market, a 20% chance...

In the following year, there is a 10% chance of a bear market, a 20% chance of a bull market, and a 70% chance of a neutral market.
Debt will return -2%, 5%, and 5% in the bear, bull and neutral market, respectively.
Equity will return -15%, 15%, and 8% in the bear, bull and neutral market , respectively .

What is the expected return of debt in %?  (round to 1 decimal place)

What is the volatility of equity in %? (round to 1 decimal place)

What is the covariance of debt and equity? (leave as a decimal; round to 5 decimal places)

What is the correlation of debt and equity?   (leave as a decimal; round to 3 decimal places)

What is the expected return of a risky portfolio made up of 70% bonds and 30% stock?  (units of %; round to 2 decimal places)  

What is the volatility of a risky portfolio made up of 70% bonds and 30% stock?    (units of %; round to 1 decimal places)   


What is the Sharpe ratio of the risky portfolio made up of 70% bonds and 30% stock? (round to 2 decimal places)

Solutions

Expert Solution

Bond
Scenario Probability Return% =rate of return% * probability Actual return -expected return(A)% (A)^2* probability
Bear 0.1 -2 -0.2 -6.3 0.0003969
Bull 0.2 5 1 0.7 9.8E-06
Normal 0.7 5 3.5 0.7 0.0000343
Expected return %= sum of weighted return = 4.3 Sum=Variance Bond= 0.00044
Standard deviation of Bond% =(Variance)^(1/2) 2.1
Stock
Scenario Probability Return% =rate of return% * probability Actual return -expected return(A)% (B)^2* probability
Bear 0.1 -15 -1.5 -22.1 0.0048841
Bull 0.2 15 3 7.9 0.0012482
Normal 0.7 8 5.6 0.9 0.0000567
Expected return %= sum of weighted return = 7.1 Sum=Variance Stock= 0.00619
Standard deviation of Stock% =(Variance)^(1/2) 7.9
Covariance Bond Stock:
Scenario Probability Actual return% -expected return% for A(A) Actual return% -expected return% For B(B) (A)*(B)*probability
Bear 0.1 -6.3 -22.1 0.0013923
Bull 0.2 0.7 7.9 0.0001106
Normal 0.7 0.7 0.9 0.0000441
Covariance=sum= 0.00155
Correlation A&B= Covariance/(std devA*std devB)= 0.936
Expected return%= Wt Bond*Return Bond+Wt Stock*Return Stock
Expected return%= 0.7*4.3+0.3*7.1
Expected return%= 5.14
Variance =( w2A*σ2(RA) + w2B*σ2(RB) + 2*(wA)*(wB)*Cor(RA, RB)*σ(RA)*σ(RB))
Variance =0.7^2*0.021^2+0.3^2*0.07867^2+2*0.7*0.3*0.021*0.07867*0.9364
Variance 0.00142
Standard deviation= (variance)^0.5
Standard deviation= 3.8%
Sharpe ratio(reward to variability)
=(Return-risk free rate)/std dev
=(5.14-4.3)/3.77
=0.2228 = 22.3%

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