The complete S & ampP 500 index is the S & AMPP 500 index, which records the stock indexes of 500 listed companies in the United States. This stock index is created and maintained by Standard & Poor's Company.

Standard & Poor's 500 Index was compiled by Standard & Poor's Company in 1957. Compared with the Dow Jones Industrial Average, the Standard & Poor's 500 Index has the characteristics of wide sampling area, strong representativeness, high accuracy and good continuity, and is generally regarded as the ideal target of stock index futures contracts.