This is not fixed, it is decided by the fund company.
According to the provisions of the Fund Law, the dividend principle of open-end funds is: after the distribution of fund income, the net value of each fund share cannot be lower than the face value; The bank transfer or other formalities occurring in the process of income distribution shall be borne by the investors themselves; On the premise of meeting the dividend conditions of relevant funds, it is necessary to stipulate the maximum distribution times of fund income each year; The minimum proportion of annual fund income distribution; If there is a net loss in the current period of fund investment, no income distribution will be made; The current year's income of the fund should first make up for the previous year's losses, and then the current year's income can be distributed.
Is the net value of the fund low after dividends?
Fund dividend means that the fund distributes part of the income to fund investors in cash, which is originally a part of the net value of the fund unit. So what you actually get is the assets on your own books, which is why the net value of the fund unit fell on the day of dividends (ex-dividend date).