1. For futures contracts, the delivery date refers to the date when the goods must be delivered.

2. The essence of buying and selling stock index futures is to sign a contract with others to buy and sell futures at the agreed price and quantity within the agreed time and delivery place of stock index futures.

This contract has an agreed last trading day (that is, the day when the contract is finally performed, usually the third Friday of the contract month), which is the delivery date of the futures index.

4. When the agreed final performance time comes, the buyer and the seller must close the position (terminate the contract) or make delivery (cash settlement).