I think it's buying more and selling short. That is, if you think you want to go up, you will buy more, and if you go up, you will make money; If you think it's going to fall, short it, and if it falls, make money. Just do it in the right direction. However, futures are margin trading and have certain leverage. If you don't understand, it's still quite risky to operate! For example, the gold futures bar sets the margin ratio as 10%, that is, 10W can trade 10W. When the price is $0/500 per ounce/kloc, you think gold will go up. If you buy more at this price, every 100 ounces will be worth 15W, while you only need1.5w. When gold rises to 15 10 USD/oz, it will rise to 10 USD/oz and earn/kloc-0. If you do it in the wrong direction, the loss will be amplified.