Collect daily/weekly/monthly stock price for any three corporations at least (for 3/5/10) years and S&P 500 as a market index. Based on log return calculate the risk and return for individual securities. Which one is the best investment opportunity and why? Justify your answer.

Now suppose an equally weighted portfolio of three stocks and the S&P as a market index. Calculate your portfolio risk and return . Based on CAPM what is the required rate of return of each security ? Consider the six-month T-bill rate as risk free rate Interpret your answer.

For an equally weighted portfolio, what is the portfolio beta for your investment.

Please write the interpretation in a text format in excel file.