Question

In: Finance

An investor can design a risky portfolio based on two stocks, A and B. Stock A...

An investor can design a risky portfolio based on two stocks, A and B. Stock A has an expected return of 11% and a standard deviation of return of 18.0%. Stock B has an expected return of 7% and a standard deviation of return of 3%. The correlation coefficient between the returns of A and B is 0.50. The risk-free rate of return is 5% Find the proportion of the optimal risky portfolio that should be invested in stock A. What is the Sharpe Ratio of the optimal portfolio?

Solutions

Expert Solution

Optimal risk portfolio refers to a portfolio on efficient frontier which optimal combination of risky assets in such way that it provides highest return for every unit of risk.

following information provided in question -

Expected Return of A (RA) = 0.11

Standard Deviation of A () = 0.18

Expected Return of B (RB) = 0.07

Standard Deviation of A () = 0.03

Correlation of A & B (rAB) = 0.5

Risk Free rate (rf) = 0.05

We calculate the optimal weight of stock in optimal risky portfolio with following formula -

Thus, the proportion of Stock-A in optimal portfolio would be 33.51%

Expected Return of Portfolio (Rp)

Standard deviation of Portfolio ()

Sharpe Ratio of Portfolio


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