You manage a risky portfolio with an expected rate of return of 21% and a standard deviation of 42%. The T-bill rate is 5%.

Your client chooses to invest 65% of a portfolio in your fund and 35% in an essentially risk-free money market fund. What is the expected value and standard deviation of the rate of return on his portfolio?

What is the reward-to-volatility (Sharpe) ratio of your risky portfolio? Your client’s?