Short covering's liquidation refers to shorting at a high position and buying liquidation when the price falls to a satisfactory level, which causes the price to rebound temporarily, but it cannot rebound to the original height. It is equivalent to short-term profit out, that is, short-term profit, choose to close the position and take profit.

Because investors are short, the direction of signing futures contracts is to sell, and they need to buy when they close their positions. In this way, the original bears became bulls, which contributed to the price increase, making futures prices stop falling and rebound when they fall, and accelerate when they rise.

In short, short covering contributes to the rise of futures prices, and the only difference is the low rebound after the fall or the accelerated rise during the rise.