First of all, the opening of stock index futures means that the government or financial institutions cancel or relax the restrictions on the stock index futures market in order to promote the development of the securities market. This openness means more investment opportunities for stock index futures traders, and it can also improve the liquidity and transparency of the market, reduce transaction costs and promote the healthy development of the market.

Secondly, the opening of stock index futures is not only to encourage more people to participate in investment, but also to improve market transparency and liquidity. In the increasingly globalized financial market, the opening of stock index futures can attract more foreign investors to enter the China market and promote domestic investors to enter overseas markets. This two-way flow of investment can improve the internationalization level of the market and promote the prosperity of the global financial market.

Finally, the opening of stock index futures is also to promote the integration of capital markets. At present, there are many divisions and isolations in China's capital market, which need to be broken through opening up. The opening of stock index futures can promote the integration of various markets and make the capital flow in different markets more convenient. This integration can not only improve the efficiency and transparency of the market, but also improve the development level of the whole market.