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The Optima Mutual Fund has an expected return of 21.1% and a volatility of 18.6%. Optima claims that no other portfolio offers a higher Sharpe
The Optima Mutual Fund has an expected return of 21.1% and a volatility of 18.6%.
Optima claims that no other portfolio offers a higher Sharpe ratio. Suppose this claim is true, and the risk-free interest rate is 4.1%.
a. What is Optima's Sharpe ratio?
b. If eBay's stock has a volatility of 44.3% and an expected return of 10.5%, what must be its correlation with the Optima Fund?
c. If the SubOptima Fund has a correlation of 85% with the Optima Fund, what is the Sharpe ratio of the SubOptima Fund?
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