D. 55%
The common stock of the Avalon Corporation has been trading in a narrow range
around $40 per share for months, and you believe it is going to stay in that range for the
next 3 months. The price of a 3-month put option with an exercise price of $40 is $3,
and a call with the same expiration date and exercise price sells for $4.
Suppose you write a strap and the stock price winds up to be $42 at contract expiration.
What was your net profit on the strap?
A. $200
B. $300
C. $700
D. $400
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 _________.