Suppose that after the corn is due (delivered) in May 00 1 year, the price of corn in May 2002 is that when someone buys or sells with a pending order, another person is willing to make a deal with it at this price, which forms the new opening price of corn in May 2002.

For example, someone hangs a bill for May 2002 to buy corn at 1504 yuan, but another person hangs a bill for May 2002 to sell corn at 1592, so there will be no transaction and no position. The next day, if the person who posted the bill is in a hurry to buy it, buy it at the price 1592 offered by that person. Then we will reach an agreement. Transaction price 1592. Then the position will be displayed as 2 lots, and the daily increase is 2 lots. It will also be shown as long-term active buying, long position 1 hand. This 1592 is the price of corn in May 2002.

I'm so detailed, if you don't give it to me, I'm sorry to the audience, right?