What is the S&P 500 Index?

The Standard & Poor's Composite Price Index is a world-renowned index that is commonly regarded as the single best measure of the current United States equity market.  The S&P 500 Index is made up of 500 leading companies in most of the leading industries in the United States.

The S&P 500 covers approximately 75% of all of the U.S. equities market.  The vast majority of equity index annuity products use the S&P 500 index to link their interest rates.