Fund net value estimation refers to: according to the current position of the fund and the trend of the market, through professional calculation formula, estimate the fund's rise and fall on that day. Because the calculation tracks the position fund announced by the fund manager at the end of last quarter, rather than the stock that the fund manager is buying now, there is a deviation between the valuation and the net value, which is called estimation deviation.

For example, the data seen in April, May and June are the data of fund managers' positions on March 3 1. Suppose that the middle-level fund manager changed one or two of the top ten awkward stocks from April to June, but the system still operates according to the stocks held on March 3 1 day, so the estimated value does not match the actual net value.

The basic people buy the fund according to the actual net value, not the valuation, so the valuation can only be used as a reference, not as a condition for buying.