Futures trading adopts matchmaking trading, and transactions are made successively according to the entrusted time. When you entrust at a certain price, others also send entrustment information like a trading terminal, and make a matching transaction with the quoted quantity.

For example, when Shanghai Bank bought 3200, 400 lots were entrusted to buy at this price, and the selling price was 320 1, and 500 lots were entrusted to sell at this price. If they don't raise or lower the price, they will never make a deal. A deal can only be reached if the buyer or seller compromises. The buyer couldn't wait to make a deal immediately, so he agreed to buy at 320 1 and ate 400 of the selling price. If there are 600 lots, 500 lots will be sold, and 100 lots will be converted into 320 1. At this time, the selling price will become 3202 and the buying price will become 320 1.