$FHE sold out, and then unwillingly came back to buy some more. When buying, I felt the market value was low, and then Pippin's success was in front of me, feeling there was a chance to pump up the price. As a result, after buying, I was stuck for two days and almost hit a loss. Once I got out of the position, I hurriedly sold it, and seeing it keep rising made me greedy, so I bought back again.