Calculation formula of futures forced liquidation. There are two kinds of forced liquidation, one is the forced liquidation of the exchange, and the other is the forced liquidation of the securities firm. I wonder if the exchange is strong. The forced liquidation of the exchange is to close the position when the margin is zero. If it is completely calculated by the exchange, sometimes it fluctuates quickly and the margin is negative when closing the position. At this time, futures companies need to make up losses, and futures companies require customers to make up losses, so now futures companies have added a certain liquidation line on the basis of the exchange!