Futures is a standardized contract and a unified and long-term "commodity" contract. Buying and selling futures contracts is actually a promise to buy or sell a certain number of "commodities" in the future ("commodities" can be physical commodities such as soybeans and copper, as well as financial products such as stock indexes and foreign exchange). Strictly speaking, futures is not a commodity, but a standardized commodity contract, which stipulates that both parties to the transaction will trade a specific commodity or financial asset in the future according to the contract content. Futures trading is a trading method relative to spot trading, which is developed on the basis of spot trading and is an organized trading method by buying and selling standardized futures contracts on futures exchanges. The object of futures trading is not the commodity itself, but the standardized contract of the commodity.