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The standard deviation of returns of stock X is 30% and that of stock Y is 30%. Suppose the correlation between these two stocks is
The standard deviation of returns of stock X is 30% and that of stock Y is 30%.
Suppose the correlation between these two stocks is -1.
When I hold both stocks in my portfolio with an equal proportion in each, what is the overall standard deviation of returns of the portfolio?
O a. zero
O b. equal to 60%
O c. unchanged at 30%
O d. more than 30%
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