The settlement price of the day refers to the weighted average price of the trading volume in the last hour of a futures contract. If there is no transaction in the last hour and the price is within the price limit, the stop-loss price shall be taken as the settlement price of the day. If there is no transaction in the last hour, and the price is not within the price limit, the weighted average price of the volume in the previous hour will be taken. If there is still no deal during this period, push it forward for another hour, and so on. If the trading time is less than one hour, the weighted average price of the whole period shall be taken. When you don't buy or sell stocks, you don't have to settle accounts. Futures are settled daily for fear of credit risk, for fear that someone will stay in the market when the account is in deficit, and also to prevent the stock market from rising at the last minute.