The annualized rate of return of pure debt funds is not fixed. Pure debt funds calculate the bid-ask spread, and only when the fund price rises can they gain income. For example, if an investor buys a bond fund with a net value of 1 and the current net value of the fund is 1. 1, then the investor can get a price difference of 0. 1 yuan for each fund. The fund price is determined by the investment target, and the fund price is uncertain, so we can't know the annualized rate of return of pure debt funds.

Pure debt funds mainly invest in bonds, and the fund income is determined by the bonds invested. Bond yield = bond price+bond interest.