Introduction to withdrawal:
In stock market terminology, when securities companies accept the entrustment of investors to buy stocks, they must buy stocks according to the requirements of investors. Therefore, this part of funds must be locked for this purpose on the same day. Even if it can't be closed, it can only be thawed after the contract automatically expires the next day.
The same is true of selling stocks. When accepting the entrustment of investors to sell shares, securities companies must sell shares according to the requirements of investors. So this part of the stock must be locked on the same day. Even if it can't be closed, it can only be thawed after the contract automatically expires the next day.
If investors want to use the locked funds (want to change the purchase price or not want to buy) or stocks (want to change the selling price or not want to sell) on the same day, they must cancel the entrustment by withdrawing the order before they can use the locked funds or stocks. If the original entrustment has been completed before the investor completes the withdrawal, it cannot be withdrawn.