The fund has gone up, and many investors can hold it or sell it. You can judge whether to continue holding or selling according to the following methods:

Valuation take profit: if you buy an index fund, when the fund is at a high valuation, you can lighten your position on rallies when the net value rises sharply. There are usually pe/pb and PE/PB percentiles for reference valuation: when the PE/PB percentile is lower than 20%, it means it is underestimated; When the percentage of pe/pb is higher than 80%, it means it is overvalued.

Target rate of return: For example, the target rate of return for investors is 200%. When the funds they hold reach such high returns, they will strictly implement the operation. Everyone wants to sell at the highest point, but it is unrealistic.

In addition, if the market position is high or the industry index is high, investors can reduce their positions appropriately.