Short selling stock index futures refers to the speculation that stock investors borrow a stock from a securities firm when the stock price is bearish, and make up the sold stock in full before the actual delivery, and only settle the difference when the delivery occurs. Therefore, investors can also short stock index futures when there is no stock.

When shorting stock index futures, investors need to grasp the late trend of individual stocks more accurately, otherwise investors will suffer huge losses. At the same time, the stock index futures account needs to meet the following conditions:

1. The balance of available funds in the margin account for five consecutive trading days before the application for opening an account is not less than RMB 500,000.

2. Have the basic knowledge of stock index futures, and pass relevant tests, and the test scores should generally reach 80 points or above.

3. There are more than 20 stock index futures simulation transactions with a cumulative record of 10 trading days, or there are more than 10 commodity futures transactions in the last three years.

4. There are no serious bad credit records, and there are no laws, administrative regulations, rules and business rules of the exchange that prohibit or restrict stock index futures trading.