No, overnight settlement will not be used. This only applies to open contracts after the close. Futures are subject to a daily debt-free settlement system, that is, open contracts are settled before the daily closing. There is the concept of today's settlement price: the transaction price of futures contracts on that day is based on the weighted average price of volume, and the settlement price of the previous day is based on the absence of volume on that day. In the time-sharing chart of the futures market software, you will see a yellow line, also called the average price line, which is the settlement price of the day. There are two kinds of daily profit and loss settlement: one is called liquidation profit and loss settlement, which is divided into historical liquidation profit and loss and daily liquidation profit and loss. The other is called position profit and loss. Divided into historical position profit and loss and current position profit and loss. There are many complicated profit and loss formulas. You just need to remember that if there is no opening on that day, the exchange will settle according to today's settlement price and your opening price. For example, a new customer received a deposit at a price of 654.38+10,000 yuan, and in May 1 opened a position to buy 40 lots of soybean futures at a transaction price of 4,000 yuan per ton. On the same day, customers closed their positions and sold 20 contracts, with a transaction price of 4030 yuan/ton, a settlement price of 4040 yuan/ton on the same day, and a trading margin ratio of 5%. So what is the customer's profit and loss for the day? (excluding fees, taxes, etc.). ) (1) liquidation profit and loss =(4030-4000)X 20 X 10=6000 yuan (the settlement price of liquidation on the same day is not used here) (2) position profit and loss = (4040-4000) x (40-20) x/kloc-