1- according to the trading time: buy before 3 pm on the trading day, and calculate according to the net value of the day. Those bought after 3 pm are only calculated according to the net fund value of the next trading day.

2

-According to the fund's net value: buy when the fund's net value is low and sell when the fund's net value is high, so as to earn the intermediate price difference and gain income.

3- According to the technical form: when the technical form of the fund deteriorates, sell it. If you buy an on-market fund, you can sell it at a profit to gain income when the index has broken.

4- According to the market situation: when the market situation improves, the fund is more likely to rise later if it is bought properly.

five

-According to the fund valuation: buy appropriately when the fund valuation is low. If the fund valuation is high, the bubble will be bigger and the investment risk will be higher.

It should be noted that there is no fixed standard for the timing of buying and selling, and investors can comprehensively consider their own risk preferences, investment objectives and other factors.