
PORTFOLIO THEORY: AN INTERNATIONAL PERSPECTIVE 481
Year Return on Stock X Return on Stock Y
2012 12% 15%
2013 18% 14%
2014 17% !6%
a. What is the expected return on a portfolio made
up of 30 percent X and 70 percent Y?
b. Calculate the standard deviation of each stock.
c. What is the portfolio risk of a portfolio made up of
30 percent X and 70 percent Y?
18. The following data are available to you as a portfolio
manager:
Expected
return (%)
Beta Standard
deviation (%)
Stock A 20 1.50 35
Stock B 32 1.75 35
Stock C 50 1.80 40
Stock D 15 1.20 15
Market index 13 1.00 10
Treasury bills 8 0 0
In terms of the security market line, which of the secur ...