The contract can still be traded before the final delivery date of the delivery month, but ordinary investors must close their positions or move their positions on the final delivery date. Because individual investors can't participate in the delivery.

Delivery month: also known as contract month, refers to the physical delivery month uniformly stipulated by commodity exchanges for a commodity futures. When the futures contract expires, the buyer's customer or the seller's customer shall deliver the goods or collect the payment for the goods according to the quantity and quality stipulated in the contract in order to fulfill the futures contract. It is one of the trading conditions of futures contracts.