1. The delivery date of stock index futures is generally the last day of the contract trading day. If the last trading day is the third Friday of the expiration month of the contract, it will be postponed in case of national legal holidays.

2. The full name of stock index futures is stock price index futures. As a kind of futures trading, it belongs to financial futures. Stock index futures is a T+0 margin leveraged transaction, which is risky and needs to be operated under the guidance of professionals.