Question: A portfolio manager summarizes the input from the macro and micro forecasts in the following table: Micro Forecasts Asset Expected Return (%) Beta Residual Standard
A portfolio manager summarizes the input from the macro and micro forecasts in the following table:
Micro Forecasts
Asset Expected Return (%) Beta Residual Standard Deviation (%)
Stock A 22 1.00 40
Stock B 20 2.50 60
Macro Forecasts
Asset Expected Return (%) Standard Deviation (%)
T-bills 7 0
Passive Equity Portfolio (m)12 25
Instruction: Enter your answer as a decimal number rounded to two decimal places for residual variances.
Residual variance of stock A
Residual variance of stock B
Instruction: for part b, enter your response as a decimal number rounded to four decimal places.
b. Suppose that the portfolio manager follows the Treynor-Black model, and constructs an active portfolio (p) that consists of the above two stocks. The alpha of the active portfolio (p) is -18%, and its residual standard deviation is 150%.
What is the Sharpe ratio for the optimal portfolio (consisting of the passive equity portfolio and the active portfolio (p))?
What's the M2of the optimal portfolio?
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