Futures cannot be closed immediately on the same day. \ x0d \ x0d \ notice requires that futures companies should remind investors to strengthen risk prevention, strengthen account opening management and account security management, strengthen investor withdrawal management, strengthen daily risk monitoring and strengthen coordination. \ x0d \ x0d \ In the Notice, the CSRC emphasized that futures companies should establish and improve the management system for customers' capital withdrawal, strengthen the internal audit and control of capital withdrawal, and require futures companies to strictly implement the debt-free settlement system of the day, and investors are not allowed to withdraw funds before the settlement is completed. \ x0d \ x0d \ If the futures exchange informs about the suspected violation of laws and regulations, the futures company where the loss-making investor is located shall immediately verify the transaction with the investor, and the futures company where the profit-making investor is located shall restrict the investor from withdrawing funds before the investigation of the incident is completed. \ x0d \ x0d \ In the past, the information technology system of the exchange could detect and remedy illegal cases such as knocking at the door, but the speed of remedy often "can't beat" the speed at which the knocker pays the money. \ x0d \ x0d \ With the system constraint of "investors can't make money before the settlement is completed", it leaves time for management institutions and exchanges to remedy illegal cases such as cross-inspection. \x0d\\x0d\ Although prohibiting profits on the same day weakens the market characteristics of the futures market T+0 to some extent, it is a necessary measure to ensure the safety of investors' funds.