The lock position of futures trading is to establish the same number of positions in the same futures variety, while the "buy/sell" direction is opposite. According to relevant information, the locked positions in futures trading are the same number of positions in the same futures variety with opposite "buy/sell" directions. No matter whether the market goes up or down, the funds will not change. The difference between locking and closing is that it must be unlocked again after locking. Lock positions generally refer to investors opening new positions opposite to the original positions after buying and selling contracts, also known as lock positions and lock orders.