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1·And index futures is just a effective hedging tool, by hedging ETF with index futures to reach the goal of avoiding risk and locking yield.

股指期货恰恰是一种有效的套期保值工具，通过对etf进行套期保值操作可以达到规避风险和锁定收益的目的。

2·If we do not participate in derivatives market, companies will lost a powerful hedging tool and risk-adjusted returns and will be exposed to a number of uncertain risk in international competition.

假如不参与衍生金融工具市场，企业就损失了强大的避险工具和风险收益，会在国际竞争中将自身暴露在众多不确定的风险中。

3·Stocks Index Futures is the major tool for the investors' hedging, by putting stock index futures on a fall, to reach the goal of avoiding risk and locking yield.

股指期货是投资者进行套期保值的主要工具，通过做空股指期货，可以达到规避系统性风险和锁定收益的目的。