In the actual trading process, reverse orders are often used to hedge the risk of the original position.

For example, if you hold 100 lots of RU 1405 contracts at point A, in case of short-term pressure at point B, in order to control risks, you can open 30-50% empty orders with the same contract at point B, and close the positions in area C, which has no influence on the multiple orders established in the previous period, just to hedge risks. As for the timing of liquidation, it is a question of trading system and trading strategy.