Holding a position is how many people are holding positions now. Multiple orders and empty orders are equal, so it is calculated unilaterally. ?

Compared with the previous trading day, the warehouse difference is more or less today.

Position difference: refers to the position held on the trading day compared with the previous day. A positive position difference means that the position is higher than that of the previous day, and a negative position difference means that the position is lower than that of the previous day.

Open position: refers to the sum of the number of contracts that have not been reversed by buyers and sellers. The size of the position reflects the size of the market transaction and the difference between the long and short sides in the current price. For example, if two people are counterparties, one person opens a position to buy 1 contract, and the other person opens a position to sell 1 contract, then the position is displayed as a 2-hand contract.