stock index futures contract

例句：

1. 1.The stock index futures contract was a major event in the financial market.
   股票指数期货合约是金融市场的一大事件。
2. 2. The stock index futures contract was a way for investors to hedge against market volatility.
   股票指数期货合约是一种投资者对冲市场波动的方式。
3. 3. The stock index futures contract was a way for traders to speculate on the direction of the market.
   股票指数期货合约是交易员预测市场走势的一种方式。