Reference no: EM132499067
A portfolio manager summarizes the input from the macro and micro forecasters in the following tables:
Micro Forecasts
Asset Expected return (%) Beta Residual Standard Deviation (%)
Stock A 23 1.8 57
Stock B 20 2.0 71
Stock C 19 1.1 62
Stock D 15 1.3 51
Macro Forecasts
Expected Return Standard Deviation
Asset (%) (%)
T-Bills 12 0
Passive equity portfolio 18 30
a. Calculate expected excess returns, alpha values, and residual variances for these stocks (Negative values should be indicated by a minus sign. Do not round intermediate calculations. Round "Alpha values to 1 decimal place).
Stock A Stock B Stock C Stock D
Excess Returns _?____ % _?___ % ___?__ % __?___ %
Alpha Values _?____ % __?___ % ___?__ % ___?__ %
Residual variances ___ ___?_____ ____ ?______ ____ _?______ _?___
B. Compute the proportion in the optimal risky portfolio (do not round intermediate calculations. Enter your answer as decimals rounded to 4 places.)
Proportion _______________
C. What is the Sharpe ratio for the optimal portfolio? (Do not round intermediate calculations. Enter your answers as decimals rounded to 4 places.)
D. By how much did the position in the active portfolio improve the Sharpe ratio compared to a purely passive index strategy? (Do not round intermediate calculations. Enter your answers as decimals rounded to 4 places.)
Active Portfolio ___________
e. What should be the exact makeup of the complete portfolio (including the risk-free asset) for an investor with a coefficient of risk aversion of 21? (Do not round intermediate calculations. Round your answers to 2 decimal places.)
Final Posiitons
Bills
M _____________%
A ______________%
B ______________%
C ______________%
D ______________%
TOTAL _________________%