Close the position to buy and close the position to sell because futures trading can be long and short, and buy when short. Therefore, it is the investors who bought the open position and sold the closed position. Selling Pingduo S is an investor who initially opened his position by selling and closed his position by buying.

One of the biggest differences between futures trading and stock market is that futures can be traded in both directions, and futures can be long or short. When the price rises, you can buy low and sell high, and when the price falls, you can sell high and buy low. Going long can make money, and shorting can also make money, so there is no bear market in futures.