You need to look at the contract price, precise to the second, and the price to compare is the initial opening price and the contract price at the closing time. It is not the price at which you closed the position!

Solution
When buying a contract, the market is down.
Closing the position shows the price is clearly below my opening price, meaning the black line is below the red line, it should be a win, why is it judged as a loss? Yesterday, there was also an order of 100u that was like this #合约活动