Question

Stocks A and B have the following probability distributions of expected future returns: Probability     A     B...

Stocks A and B have the following probability distributions of expected future returns:

Probability     A     B
0.1 (15 %) (37 %)
0.1 4 0
0.5 14 23
0.2 19 27
0.1 39 37
  1. Calculate the expected rate of return, , for Stock B ( = 13.60%.) Do not round intermediate calculations. Round your answer to two decimal places.

      %

  2. Calculate the standard deviation of expected returns, σA, for Stock A (σB = 19.96%.) Do not round intermediate calculations. Round your answer to two decimal places.

      %

    Now calculate the coefficient of variation for Stock B. Do not round intermediate calculations. Round your answer to two decimal places.

    Is it possible that most investors might regard Stock B as being less risky than Stock A?

    1. If Stock B is more highly correlated with the market than A, then it might have a lower beta than Stock A, and hence be less risky in a portfolio sense.
    2. If Stock B is more highly correlated with the market than A, then it might have the same beta as Stock A, and hence be just as risky in a portfolio sense.
    3. If Stock B is less highly correlated with the market than A, then it might have a lower beta than Stock A, and hence be less risky in a portfolio sense.
    4. If Stock B is less highly correlated with the market than A, then it might have a higher beta than Stock A, and hence be more risky in a portfolio sense.
    5. If Stock B is more highly correlated with the market than A, then it might have a higher beta than Stock A, and hence be less risky in a portfolio sense.
  3. Assume the risk-free rate is 1.5%. What are the Sharpe ratios for Stocks A and B? Do not round intermediate calculations. Round your answers to four decimal places.

    Stock A:

    Stock B:

    Are these calculations consistent with the information obtained from the coefficient of variation calculations in Part b?

    1. In a stand-alone risk sense A is more risky than B. If Stock B is less highly correlated with the market than A, then it might have a lower beta than Stock A, and hence be less risky in a portfolio sense.
    2. In a stand-alone risk sense A is more risky than B. If Stock B is less highly correlated with the market than A, then it might have a higher beta than Stock A, and hence be more risky in a portfolio sense.
    3. In a stand-alone risk sense A is less risky than B. If Stock B is more highly correlated with the market than A, then it might have the same beta as Stock A, and hence be just as risky in a portfolio sense.
    4. In a stand-alone risk sense A is less risky than B. If Stock B is less highly correlated with the market than A, then it might have a lower beta than Stock A, and hence be less risky in a portfolio sense.
    5. In a stand-alone risk sense A is less risky than B. If Stock B is less highly correlated with the market than A, then it might have a higher beta than Stock A, and hence be more risky in a portfolio sense.

Homework Answers

Answer #1

a. Expected return of B =0.1*-37%+0.1*0%+0.5*23%+0.2*27%+0.1*37% =16.90%

b. Standard Deviation of A
=(0.1*(-15%-13.60%)^2+0.1*(4%-13.60%)^2+0.5*(14%-13.60%)^2+0.2*(19%-13.60%)^2+0.1*(39%-13.60%)^2)^0.5=12.71%

Coefficient of Variation =Standard Deviation/Expected Return of B =19.96%/16.90% =1.18

Option III is correct option because lower the beta lower is the risk.

c. Sharpe Ratio of A =(Return of A-Risk free rate)/Standard Deviation=(13.60%-1.5%)/12.71% =0.9523
Sharpe Ratio of B =(Return of A-Risk free rate)/Standard Deviation=(16.90%-1.5%)/19.96% =0.7715

Option IV is correct option

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