The stock index futures were shorted successfully, and the seller made money. If the buyer succeeds in shorting, the buyer will make a profit and the seller will lose money. The money earned by the buyer plus the handling fee is the money lost by the seller. 、

The full name of stock index futures (SPIF) is stock index futures, which can also be called stock index futures and futures index. It refers to the standardized futures contract with the stock price index as the subject matter. The two parties agree to buy and sell the underlying index according to the size of the stock price index determined in advance at a future date, and settle the difference in cash after the expiration. ?