S&P Futures are the most popularly traded stock index futures contract. S&P futures contracts are traded on the Chicago Mercantile Exchange (CME). The S&P 500 stock index is a market valued weighted index of 500 large capitalized stocks traded on the New York Stock Exchange (NYSE), American Stock Exchange (AMEX) and Nasdaq National Market Executive System (NASDAQ). Related posts: Dow Futures Trading Explained (Part II) Dow Futures Trading Explained (Part I) Exchange Traded