1, the cumulative net value cannot accurately reflect the fund's income, because the fund can choose cash when paying dividends, or it can choose to reinvest the dividend cash automatically. If you choose cash, you can also choose to buy it manually in a few days or months. Cumulative net worth is a simple reduction, which can be used as an indicator if accurate calculation is not needed.

Income = fund net value of the day × fund share ×( 1- redemption fee)-subscription amount+cash dividend.

Rate of return = income/subscription amount × 100%

2. The most important indicator to measure the fund's rate of return is the rate of return on fund investment, that is, the ratio of the actual return on fund securities investment to the investment cost. The higher the return on investment, the stronger the profitability of fund securities. If the subscription and redemption of fund securities need to pay a handling fee, the handling fee factor should be considered in the calculation.

3. The net value of a fund unit is the net asset value of each fund unit, which is equal to the balance of the total assets of the fund minus the total liabilities and then divided by the total number of unit shares issued by the fund. The subscription and redemption of open-end funds are carried out at this price. The transaction price of closed-end funds is the known market price at the time of trading; On the other hand, the unit transaction price of the open-end fund depends on the net asset value of the unit fund, which is unknown at the time of subscription and redemption (but it can be calculated after the market closes on the same day and announced on the next trading day).