Double liquidation is a term in futures trading, which is simply long and short hedging. In other words, long and short hedging means that both long and short positions are closed at the same price at the same time, and the total position will be greatly reduced. ?

In a transaction, the opening amount is equal to zero, the closing amount is the current amount, the opening amount is reduced, and the difference is equal to the current amount, indicating that both long and short sides have reduced their positions. The original bulls sell and close positions, and the original bears buy and close positions and reduce positions. ?

For example:

A thinks the price of sugar fell in the afternoon. At this time, A sells A white sugar futures, but at this time, B thinks that the price of white sugar may rise, so he buys A white sugar futures, and both of them enter the market at the same time, which belongs to double opening; C holds apple futures mostly, D holds apple futures empty-handed, C and D both close their positions, C sells D and buys closed positions, which is even.