Changeable: when the bulls change hands, it means that the old ones sell and close positions, and the new ones buy and open positions (red) (old-new).

Short positions change hands: short positions change hands, which means that the old positions are bought and closed, and the new positions are sold and opened (green) (old positions-new positions).

Double opening: a transaction between a new long position and a new short position. That is, both buyers and sellers are new positions (red) (new lots and new spaces).

Double flat: A transaction between an old long selling position and an old short buying position. That is, both buyers and sellers are closing their positions (green) (old and empty).

Short position level: take the initiative to close short positions (red)

Duoping: active liquidation (green)

Long positions: short positions and long positions are opened at the same time, and the transaction is made at the declared price of the long positions, reflecting active buying.

Open positions: both bulls and bears open positions at the same time. The transaction was conducted at the declared price of short positions, reflecting the active selling.