1. Faced with the cash dividend of the fund, we have to reserve a lot of cash. At this time, the market index is bullish, and this trend will continue for some time. 2. Market hotspots change frequently, and the number of times increases. Moreover, plate rotation also drives the market index to rise. Due to the frequent changes of market hotspots, it has brought great difficulties to investors. Or investors can see the market clearly, but they can't catch some. Stock. In this case, you can buy index futures contracts to make a profit. 3. The influence of bullish bad news, such as the influence of external factors, is reflected in the market because of policy changes or emergencies. That is, some investment hotspots will suddenly appear and last for a period of time. Another strategy is active risk management strategy. This strategy means that investors actively buy and sell stock index futures contracts according to their own actual situation, such as the size of capital position and asset structure, combined with market fluctuations, and conduct risk management on their investments, so as to achieve the purpose of reducing portfolio risk.

Mainly applicable to the following situations. (1) After the fund manager makes the decision to sell the portfolio, it will take a long time to sell it all because of the large number of positions, and it will also affect the market price and market changes to a certain extent, such as a sharp drop. So you can sell some stock index futures contracts first, which can reduce the risk and have more time to clear the position at a better price. The same is true of buying. (2) With the emergence and expansion of a securities investment fund or open-end fund, the market activity has increased, so we are optimistic about its future trend. It will rise in the short term. However, due to insufficient funds, you can buy futures contracts first, set the price in advance, and reinvest when the funds arrive. The losses caused by the stock price rise can be made up by the profits won by stock index futures.