The standard deviation of the returns on a stock is 25% and the standard deviation of the market is 20%. The risk-free rate is 6%. The beta for the stock is 0.80, and the market risk premium is 8%. According to the market model, what proportion of the stock's variance is explained by the market?
a. |
64% |
|
b. |
41% |
|
c. |
20% |
|
d. |
36% |
Correct answer: b. 41%
Standard deviation of stock (Total Risk) = 25%
Stanadard deviation of Market = 20%
Beta of Stock =0.80
Thus,
Proportion of stock's proportion explained by market:
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