6-12 Suppose you purchased 16 shares of Disney stock for $24.22 per share On May 1, 2012. On September 1 of the same year, you sold 12 shares of the stock for $25.68. Calculate the holding period dollar gain for the shares you sold, assuming no dividend was distributed and the holding period rate of return.

6-15 Using the CAPM estimate the appropriate required rate of return for the three stocks listed here given that the risk free rate is 5 percent and the expected return for the market is 12 percent.

6-16 a. Calculate the monthly holding period returns for Merck and the S&P 500 index. b. What are the average monthly returns and standard deviation for each?