The fluctuation of fund income is a normal phenomenon. Compared with stock funds and hybrid funds, bond funds have smaller fluctuations and lower risks, but it does not mean that buying bond funds will definitely make a steady profit. History has proved that in most cases, there is a seesaw effect in the securities market, that is, when the stock market shows an upward trend, the bond market tends to be weak; On the other hand, in the past six months, the trend of A shares has been gratifying. The Shanghai Stock Exchange recorded an increase of more than 25%, and the Shenzhen Stock Exchange gained nearly 40%. The attractive rate of return makes the funds flow into the stock market and out of the bond market, which leads to the decline of bond prices, which is reflected in the loss of bond funds. Bond funds are just types of funds with bonds as investment targets. Just as most people buy stocks in order to get the spread income of buying low and selling high instead of paying dividends, the income of bond funds mostly comes from the change of bond prices, but this change is much smaller than the change of stock prices, so it is relatively stable, but it does not mean that it can break even. If you want to ensure the stability of income to the greatest extent, it is recommended to buy money market funds, national debt or sound bank wealth management products.