$SOL callback pen broke through 3 buy piercing the center, for the structure it is a central expansion, not representing a turn, the current price has not fallen below 176.31, so the 30-minute bottom segmentation range is 179.2. Since it has broken through with volume, before the bottom structure is damaged, we look for a rebound upwards, and then wait for the top segmentation to appear. The current K-line has the conditions to form a pen, but the top segmentation has not yet appeared, so we look at the continuation of the current upward pen.