When buying stocks, when the system liquidates after the close of the day, the declaration of the open position of the limit order will be automatically cancelled.

Time for entrustment declaration of stock trading:

Shanghai Stock Exchange: The time for accepting bidding trading declarations from trading participants is from 9: 15 to 9: 25, 9: 30 to 1 1:30, 13:00 to 15:00 every trading day.

At the opening stage of call auction from 9:20 to 9:25 every trading day, the trading host of this exchange does not accept the declaration of withdrawal; At other times when the transaction declaration is accepted, the unfinished transaction declaration may be revoked. The revocation order is valid after it is confirmed by the trading host of this Exchange.

Shenzhen Stock Exchange:

The time for accepting members' bidding transaction reports is from 9: 15 to1:30, 13: 00 to 15: 00 every trading day.

Every trading day from 9: 20 to 9: 25, 14: 57 to 15: 00, the trading host of the exchange will not accept the cancellation declaration for participating in the bidding transaction; At other times when the declaration is accepted, the unfinished declaration may be revoked.

Every trading day from 9: 25 to 9: 30, the trading host only accepts the declaration, and does not handle the trading declaration or cancel the declaration.