In the four-hour chart, there is a wide range of shock boxes. In Long Ge's naked K tactics, there is a line in the box called the strong and weak dividing line, which is the green line in the figure below. I think the market has touched the strong and weak dividing line once here, and then rebounded again after it came down. It formed two bottoms in four hours. There is a probability that it will touch the strong and weak dividing line again, and there may be a pin breakthrough, so the rebound position we are concerned about is the 61500-62000 range.