The Security Market Line tells us that assets and portfolios that deliver high average expected rates of return should also have high levels of risk as measured by beta. Let us see if this appears to hold true for mutual fund portfolios. Go to the Mutual Fund Center at Yahoo Finance at finance.yahoo.com/funds, click on "Market Data," then "Top Performers." This will give you lists of funds with the 10 best rates of return over various time periods. Click on each of the 10 funds listed under "Top Performers1 Year" and find each fund's beta by clicking on the link labeled "Risk.

" any of the funds have a beta less than 1.0? Do these results make sense given what you have learned? Should you be impressed that funds with risky portfolios generate high returns?