You sell S&P 500 stock index futures that specified an index of 1,725. When you close this position, the index specified by the futures contract was 1,815. Determine the profit or loss, ignoring transaction costs. Solution Let amount inveted = 100000 Closing valu of invetment = 100000/1725 x 1815 = 105217 Profit = 105217 -100000 = 5217.