(1) Calculate the floating gain and loss. That is, the settlement institution calculates the floating profit and loss of the open positions of the members according to the settlement price of the transaction on that day, and determines the amount of the deposit payable for the open positions. The calculation method of floating profit and loss is: floating profit and loss = (settlement price of the day-opening price) x position x contract unit-handling fee. If it is positive, it means that it is a long floating profit or a short floating loss, that is, the price increase after the long position is a long floating profit, and the price increase after the short position is a short floating loss. If it is negative, it means the floating loss of bulls or the floating profit of bears, that is, the price drop after the bulls open positions indicates the floating loss of bulls, or the price drop after the bears open positions indicates the floating profit of bears. If the margin amount is not enough to maintain the open position contract, the clearing institution will inform the members to make up the difference before the second largest market opening, that is, to add margin, otherwise they will be forced to close their positions. If there are floating profits, members can't put forward this part of the profits unless the liquidation contract is closed and the floating profits are turned into actual profits.
(2) Calculate the actual profit and loss. The profit and loss realized by liquidation is called actual profit and loss. Most contracts in futures trading are closed by liquidation.
The calculation method of actual profit and loss of bulls is: profit and loss = (closing price-buying price) x position x contract unit-handling fee.
The calculation method of short profit and loss is: profit and loss = (selling price-closing price) x holdings x contract units-handling fee.