Fund sales mainly follow the principle of first in first out. Assuming that only a part is sold, the system will give priority to the share bought before, and then charge a certain redemption fee according to the holding time, which depends on how the fund rules stipulate the redemption fee, and the redemption fee will be different for each fund.
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Should the fund decide to sell on rallies?
The fixed investment of the fund is only an investment method, and it is ok to sell on rallies. As long as the fund makes money, it can be sold, so the money will be lost. Don't wait until the fund falls, or you will lose money. Secondly, it is worth noting that if the fund sells on rallies, don't make a fixed investment, but make a fixed investment in closed-end funds, otherwise the fund will be deducted directly every month.