Futures opened for more than ten minutes in the morning, and the account money was less because of the settlement price. If investors find that there is less money in their accounts after the close, and rule out the reasons for deposit and withdrawal, it should be because of the settlement price. Futures is a debt-free day settlement system, which means that investors' transactions will be settled after 3 pm every day. The reason for the decrease in account funds is this settlement price, but investors can rest assured that the decrease in funds caused by the settlement price is not the actual profit and loss of the account.