Invalid. Due to the limitation of domestic trading system, the exchange server does not support saving the customer's stop loss point. Stop loss data is stored in the client, and when the client detects that the price reaches the stop loss price, it will automatically send a liquidation order. If you turn off the software, it will be invalid. And if there is a gap after the appearance, the stop loss is also invalid. For example, after lunch break, the first offer exceeds your stop-loss price. Stop loss will automatically expire. I'm miserable again, shorting copper. Direct daily limit at the opening in the afternoon. Sweat!