Open position refers to the sum of open positions of buyers and sellers, which is calculated in both directions. In other words, half of the positions we see are buying positions and half are selling positions. Only one side is unilateral.

Some futures exchanges or varieties stipulate that the same account can hold multiple positions and short positions of the same variety at the same time. If you have held multiple positions before, investors have two short options: one is to open a new short position; The second is the long position before liquidation. In this case, investors can hold bilateral positions.