Futures trading is a contract, not a physical object. The contract is the object that the exchange hangs out for enterprises and traders to trade. Traders use frozen deposits to control contracts.

Sell first and then buy, and explain the principle of short-selling profit in futures in an easy-to-understand way.

The settlement shall be made at the delivery price. If the delivery price is higher than the quoted price, it means that the price rises after the buyer buys it, then the buyer will definitely make a profit, and vice versa.

For example, the price of rice is 2.5, the buyer's price is 2.5, and the corresponding seller is 2.5. When the price dropped to 2.3, the buyer actually lost 0.2 yuan and the seller earned 0.2 yuan.