It belongs to futures. Futures refers to the contract that the buyer and the seller agree to deliver the subject matter on the exchange at an agreed price at a certain time in the future. Futures are the subject matter of present trading and future delivery. This subject matter can be gold, crude oil, agricultural products, financial instruments, financial indicators and other commodities. The delivery date of futures can be one week later, one month later, three months later or even one year later. Futures market first appeared in Europe. The object of futures trading is futures contracts, not physical objects. Therefore, futures investors can make physical delivery or cash delivery when the contract expires.