The net fund value is also called the net fund unit value, that is, the net asset value of each fund unit is equal to the balance of the total assets minus the total liabilities of the fund 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.

Net fund value is the net asset value of fund shares, referred to as net asset value (NAV), also called the net asset value of each fund share.

The calculation formula is: net asset value of fund share = (total assets-total liabilities)/total fund share. Among them, total assets refer to all assets owned by the fund, including stocks, bonds, bank deposits and other securities; Total liabilities refer to liabilities arising from fund operation and financing, including various expenses payable to others, interest payable on funds, etc. The total number of fund shares refers to the total number of fund shares issued at that time. The total share of open-end funds changes every day, so the statistics after the end of the day's transaction shall prevail. After the close of each trading day, the net asset value of the fund on that day is divided by the total number of fund shares at the close of the trading day to get the net asset value of the shares on that day.

The net value of share funds is an important indicator to reflect the performance of funds, and the transaction price of open-end funds is determined on the basis of the net value of each fund share. Because the value of assets owned by the fund always changes with the fluctuation of the market, the net value of the fund will also change constantly.