Whether buying stocks, futures, funds or other securities and commodities that can be listed and traded on the original basis, it can be called increasing holdings. In other words, you have a certain position, and buying more means increasing your holdings-adding positions.
Clearance order: in a transaction, buying a contract and selling it after the expected price rises is called long position, while holding a contract is more than one position. On the contrary, selling after the expected price falls and then covering the position is called an empty order, while holding a contract is an empty order. Empty orders in stock index futures refer to the number of all empty orders, and empty orders in futures refer to the number of empty orders MINUS the number of multiple orders in the contract.