Hello, as long as you abide by fair trading rules, do not manipulate the market, and do not exploit system loopholes, we do not have any restrictions on order holding time.
Reminder: Trading (including opening and closing positions) is not allowed two hours before the close of Friday and two hours after the opening. Two hours before the close of Friday, the system will automatically force the closing of open positions and pending orders. The losses caused by the system's forced closing shall be borne by the customer. Thank you.