There are two ways to lock positions in gold futures trading, one is profit locking and the other is loss locking. Profit locking refers to not only not closing the position but also opening a new position in the opposite direction when there is a certain range of floating profits after trading. Loss locking means that when there is floating loss after trading, investors do not want to turn the floating loss into actual loss, so they continue to hold the original loss position and open a new position in the opposite direction in an attempt to lock in the loss risk. The practice of countless traders has proved that locking positions is actually risky. This is especially true of a foolish trading behavior, which leads to a loss trap. Traders often have a common problem, that is, they dare not face the reality of losses. Locking is the concrete manifestation of this mentality. So what are the disadvantages of locks? The main disadvantage of locking is that it takes up double margin, reduces the efficiency of capital use and increases transaction costs. Another disadvantage is that locking is easy to unlock but difficult to lock. Although the floating losses have not been converted into actual losses for the time being, the funds have actually been locked. It's just that the investor hasn't signed it yet. More importantly, locking positions seriously affects the mentality of traders. Because of two-way positions, there is often a certain psychological burden when investing. Sometimes, even if you are determined to unlock the position, you are worried that the position loss in the other direction will continue to increase. Once there is a little sign, you will re-lock the warehouse, and then fall into a vicious circle of locking-unlocking-and finally hopeless. Nye's liquidation at the same time will still turn the floating loss into the actual loss, and the loss at this time is already huge. Locking a warehouse is a harmful bad trading habit. If investors want to succeed in the futures market, they must completely abandon the lock-up behavior psychologically and behaviorally. Once they make mistakes in operation, they should stop their losses in time and find another opportunity. It is suggested that investors in the group try to avoid locking positions in actual transactions.