See if the company system is humanized. If the loss is not great, it may be prompted, but it cannot be forced. If there is a big loss, it will be prompted within 10 minutes before the closing, and the margin will be added in time. If it doesn't go up, the market will continue to be unfavorable to you at the opening of the next day. If it is lower than the margin requirement of the exchange, the margin may be leveled. This is the situation of our company. I wonder what will happen to other companies?