Invalid. Due to the limitation of domestic trading system, the exchange server does not support saving customer stop loss points. 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.

Stop loss means that when the loss of an investment reaches a predetermined amount, it will cut the position in time to avoid further loss. Its purpose is to limit the loss to a smaller range when the investment goes wrong. An important difference between stock investment and gambling is that the former can limit the loss within a certain range through stop loss and maximize the return on success. Stop loss makes it possible to obtain greater profits at a lower cost.