The S&P 500 Index is a widely used measure of large-cap U.S. stock
market performance. It is a representative sample of important companies
in leading industries. Companies are selected for inclusion in the index
based on a variety of factors, such as adequate liquidity, appropriate
market capitalization, financial viability, and the size of the public
float.
Rydex and ProFunds mutual funds that track the S&P 500 index are listed below.
Some of these funds track the S&P 500 index with a gearing of 200%. This
means that the funds will gain 2%, if the S&P 500 index moves up 1%.
Funds which could be traded when a