Futures correspond to spot and come from spot. Futures is not a commodity, usually refers to a standardized contract that can be traded with a certain commodity or financial asset as the target. The so-called spot transaction means that the buyer and seller of securities go through the settlement procedures after the transaction, the buyer pays the funds to obtain the securities, and the seller delivers the securities to obtain the funds. The characteristic of spot transaction is "cash on delivery", that is, the transaction of buying spot in cash.