In futures trading, in order to limit risks, many investors often lock positions, that is, establish opposite positions. But as we all know, futures investment will charge a deposit, so will the deposit be preferential under the premise of limiting the risk of locking positions? How to collect the lock deposit? The requirements of the four major futures exchanges for collecting margin for lock positions are as follows: Dalian Commodity Exchange: there is no margin discount at the time of opening positions, and orders that form lock positions at the time of after-hours settlement only collect the larger margin. Zhengzhou Commodity Exchange: Deposit is charged when placing an order, and only positions with larger deposit are charged after the transaction. Shanghai Futures Exchange, China Financial Futures Exchange: Those with large margin will be charged with margin when locking positions, and only one-way margin will be charged in intraday trading. The above is the standard for collecting the deposit when locking the warehouse. It can be seen that the four major futures exchanges still have certain concessions for locking positions. Please pay attention to more information.