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Black Thursday's long and short game was quite intense, with ups and downs, which was better than expected. It bottomed out and rebounded. Just now, it rose linearly, and the bulls did a good job. The big financial sector rose strongly and linearly. The strong support of the five-day moving average is still quite powerful, but the situation of boiling frogs in warm water has not been reversed. It is necessary to stand firm at 3509 points to relax. The key point is whether you will dive back in the afternoon. Before you stand firm at 3509, you will continue to watch the frogs boil in warm water and will not change your mind easily. The viewpoint of maintaining the regional shock of 3350-3450 remains unchanged. Although it has broken through 3450 now, diving in the afternoon is meaningless. Don't change your point of view easily, wait until the closing.