If investors buy high-quality funds, then the high probability is only the fund callback caused by the influence of market conditions. At this time, investors can make up their positions, which can reduce the cost of holding positions and realize the purpose of closing positions after the fund rebounds. If investors buy a non-quality fund, then the fund is likely to be a callback caused by the fund's own problems, so investors had better not make up the money in time to stop the loss.

Investors can judge whether it is a high-quality fund from three aspects: historical performance, maximum withdrawal and fund manager. The higher the historical performance, the better, the smaller the maximum withdrawal, and the higher the investment level of fund managers.