Funds are highly volatile products and should be redeemed in time when they are profitable. Otherwise, if the capital rises to a higher position and starts to fall continuously, it will be a loss.
If the fund's rate of return is 40%, it actually depends on the situation at this time. If the fund is good and has development prospects, investors can hold it for a long time and redeem it when the profit reaches the expected rate of return.
If the fund is at a high level at this time and its valuation is relatively high, and there are signs of decline, it is necessary to redeem the take profit in time, because when the fund returns to a certain extent, it may fall, so when buying a fund, it is necessary to set a take profit point.
There is a difference between a fund and a deposit. The longer you deposit money, the more money you earn. Deposits are guaranteed capital and interest, but funds are highly volatile products, not to say that the longer they are held, the better. Mainly to earn the difference, buy at a low point and sell at a high point. Secondly, it should be noted that the fund is risky. If it is not redeemed in time, it is likely to lose money.