Funds can add positions during trading hours. Investors are generally advised to add positions a few minutes before the close. Transactions of the Fund before 3 pm on the trading day shall be calculated according to the net value at the close of that day. Investors can decide whether to add positions at the end of the day. You can add positions when the fund falls, and you can not add positions when the fund rises.

It is generally better for investors to add positions when they lose money, because the cost will be reduced after the loss. The lower the investor's cost, the lower the risk he takes. If investors are in a profitable state, even if the fund falls, there is no need to add positions.