Futures backhand is to close the position at the opponent's price and open a reverse warehouse receipt with the same number.

It means to open positions in the opposite direction. You should go long at first, then close your position and start shorting, and vice versa. The backhand of futures may be because you can't judge the clear market during the consolidation period, which leads to misjudgment of the market. The futures market is too volatile to grasp. It is not recommended to do too many backhand operations, and you may lose money and pay more fees.