Standard & Poor's. P500 stock index futures Standard & Poor's is the largest securities research institution in the United States. It began to compile the stock price index at 1923. In 1957, it selects 500 kinds of stocks, uses a high-speed computer, takes the total market value of these stocks as the numerator, divides by the average market value of the stocks, and takes 194 1 to 1943 as the denominator to compile a comprehensive stock price index, that is, S &；; P500 index.

Standard & Poor's. P500 stock index futures are based on S&; The futures contract with P500 index as the subject matter is one of the most popular stock index futures commodities in the United States, but the high face value of the contract limits the willingness of ordinary investors to participate. So, on September 9th, 1998, CME launched a mini S &；; p500(E-mini s & amp； P) Index futures to make it more universal. Mini S& ampP500 futures are still based on S&; The target is the P500 index, but the index multiplier of the contract has been reduced from $250 to $50, and its trading mode is mainly electronic trading.