Regular conversion of graded fund shares: according to the terms agreed by the fund manager in the fund contract and prospectus, regular conversion is carried out once a year. Under normal circumstances, after conversion, the portion of A share whose net value exceeds the principal at the end of the period (1 yuan) is converted into the corresponding parent fund share in the market and distributed to A share holders (equivalent to paying dividends to A share holders); After conversion, the net value of share A is classified as 1 yuan. After deducting the dividend value of share A, the net value of the parent fund is lowered, while the net value of share B remains unchanged.