1. Strictly speaking, a lock list refers to warehouse receipts with the same price and the same number of lots in different directions, but in practice, few people do this unless a novice places a wrong order.
2. In order to prevent the huge fluctuation of the opening of the next day, the general lock list finds a reasonable price locking risk before the closing of the first day and unlocks it according to the opening situation of the next day. This method is generally a large capital operation.
Example: February 1, the market was bullish, and the price rose to 2550 before the afternoon closing. It is expected that the price will rise again the next day, so I decided to hold a position overnight, but I was worried that the CBOT market would plummet at night, which would affect the trend of the next day, so I made a selling position at 2550 and locked in a profit of 50 points. If CBOT rises at night and opens the next day, I will close my position and sell it.