If you entrust before 15 on the trading day, the transaction will be completed after 15, which means that the cancellation of the order must be completed before 15;

If it is entrusted after the afternoon of the trading day 15, the confirmation date will be postponed to the afternoon of the second trading day 15, and the net value of the second trading day will be taken as the net purchase value. In this case, the order can be cancelled before the second trading day 15.