If necessary, there will be different regulations on trading margin when trading in different futures exchanges and locking positions. You don't need to click the lock button in the software to lock the warehouse, just open it in its original position (The & Variety &; The new position in the opposite direction is the locked position. In the last period, Energy Center and CICC: intraday trading will only automatically occupy one-way margin. The lock positions of big merchants are also one-way big positions, but the two-way positions held in the session occupy the margin, and the small margin will be refunded when the settlement is made after the session. There is no discount for the lock of the warehouse by Zhengshang Institute. The former exchange and energy center: cancel the above-mentioned one-way discount after the close of the fifth trading day before the last trading day of the contract. CICC: Treasury futures will cancel the above-mentioned one-way large-scale discount after the close of the trading day before the delivery month.