In futures trading, it is found that some futures companies have tens of thousands of net long positions, that is, the number of net long positions is greater than the number of empty orders. Futures can be opened in two directions, with multiple empty orders and large funds held in two directions. The opening amount in both directions is the same, so the market will go up and down. It doesn't matter, the net long position means that the number of multiple orders is greater than the number of empty orders, so that the market can make money if it goes up, and it will lose money if it falls.