1, the futures short order exchange refers to the investors who originally held short orders to buy and close positions, while new investors sell and open positions and trade at the same price.

2. The position of the market has not changed, but the selling order is changed from one hand to the other, which is called changing hands with empty orders.

3. Simply put, changing hands means: the original short position is bought and closed, and the new short position is sold and opened, and the position remains unchanged.