Enhanced limit orders can be placed at a specified price. Trading hours: 09:30-12:00 & 13:00-16:00, excluding Saturdays, Sundays, and public holidays.

1. As you are placing a market order, please note that the fill price of a market order is not guaranteed, which means that your order may be filled at any price.
2. Your paper trading orders will be cancelled automatically in the following two cases: 1) The funds involved in a pending market order are not enough to purchase the underlying asset (as a market order in paper trading cannot be split into multiple orders); 2) Orders remain unfilled after the market close of the second trading day.
3. If the liquidity of a stock or contract is low or if there is currently no data in the order book, the market order may remain unfilled or be cancelled.

The paper trading system will recalculate your required margin in accordance with the margin requirement after the exercise of your in-the-money (or close to in-the-money) options, starting 3 hours prior to the close of the expiry date. Please note that the system has the right to close such options position without further notice if a margin call is triggered during the above period.

The paper trading system will calculate your margin status during trading hours for risk control purposes. If your account fails to maintain sufficient margins based on real-time prices, it may be subject to forced liquidation.