1. Based on daily data downloaded from Yahoo! Finance, nd the results for IBM based on the last 5 years by running both the CAPM and Fama-French three-factor models. Which model is better?

2. For the following stock tickers, IBM, DELL, WMT, ^GSPC, C, A, AA, and MOFT, run regression based on CAPM, FF3, FFC4, and FF5. Which one is the best? Discuss your benchmark or criteria to compare.

3. The Fama-French SMH could be viewed as a portfolio. Download both daily and monthly SMB. Then estimate the total returns over 10-, 20-, and 30-year periods. Compare the differences between each pair of total returns. For example, compare total returns from 1980 to 2000 based on both daily SML and monthly SML. Why they are different?

4. Write a function to estimate the Treynor ratio. The format of the function is treynorRatio (ticker, rf, begdate, enddate), where ticker is a stock symbol, such as IBM, rf is the risk-free rate, begdate is the beginning date, and enddate is the end date.