Big rise and big sell, no rise no sell. If your holdings have increased a lot today, you can sell some. This should be related to the ChiNext stocks, which have risen too much today and can easily be hit by quant trading!
For those that haven't risen, I think there's no need to act because the entire A-share market has just started to rally. Theoretically, the entire A-share market should continue to rise, which corresponds to small and medium-sized stocks that can still rise. Currently, small and medium-sized stocks are experiencing a round of supplementary rises, so there's no need to be too anxious.