An investor can design a risky portfolio based on two stocks, A and B. Stock A has an expected return of 18% and a standard deviation of return of 20%. Stock B has an expected return of 14% and a standard deviation of return of 5%. The correlation coefficient between the returns of A and B is .50. The risk-free rate of return is 10%. The standard deviation of return on the optimal risky portfolio is _________.
Weights A and B in of optimal portfolio are calculated as follows:
So the entire portfolio is invested in B and therefore the portfolio standard deviation is that of B which is 5%
So the correct option is B
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