If the bulls open short positions at the same time, they are called double positions. The same is true for two positions. In Bohai commodity market, they are called double single double turn.

Long positions include the two situations mentioned above, which may be multi-changing hands or double positions. This term is viewed from the direction of the active party of the contract. For example, the selling price is 2 and the buying price is 1. If the transaction is 2 and it is an open position, it is called a long position, and vice versa. Bulls and bears are the same. Strictly speaking, this term is not standardized.

Shuanghui is easy to understand, and the purchase and sale orders are transferred at the same time.

Among the above names, the most standardized one is \ multiple exchange \ empty exchange \ double subscription \ double transfer.

The simple summary is:

Multi-exchange refers to: the original bulls sell and close positions, and the new bulls buy and open positions, and the positions remain unchanged.

Short position conversion: the original short position is bought and closed, and the new long position is sold and opened, and the position remains unchanged.

Multiple rounds: sell long positions and close positions.

Idle: double-turn short position closing: the original position is closed more, the original position is closed short, the position is changed twice, and the order is transferred at the same time.