If the open-end fund is traded before the close of the trading day (3 pm), it will be traded according to the net value of the fund on that day; if it is traded after the close, it will be calculated according to the net value of the next trading day.

That is to say, when the stock market plunged that day, you redeemed the fund before the close, and then calculated it after the net value of that day came out. Undoubtedly, the decline of that day was included.

after the fund is bought, it can set a profit-taking point, and it can be sold when it reaches the profit-taking point. However, the time to reach the take profit point is not fixed. For example, if it reaches the take profit point in 6 months, it will be sold in 6 months; If you reach the profit-taking point in one year, then hold it for one year and then sell it. The selling time is related to the set profit-taking point. It is recommended not to set it too low or too high, so as not to cause the fund not to sell or affect the income.

Extended information:

There is no so-called best time to buy and sell funds, because no one can guarantee whether the funds held tomorrow will go up or down. For people who have no experience in market investment, it is generally not recommended that you pursue too high a return, because the risks behind it are great, and you should leave the market in time after making a profit.

by issuing fund shares, fund management companies concentrate investors' funds, which are managed by fund custodians (that is, qualified banks), managed and used by fund managers to invest in financial instruments such as stocks and bonds, and then * * * bear the investment risks and share the benefits.