The main income of bond funds comes from the interest income of bonds invested by the fund and the difference income of buying and selling bonds. Judging from the income sources of bond funds, they are relatively stable varieties. First of all, the interest income is stable, because bonds are a kind of fixed-income securities, and their interest is generally fixed (of course, there are floating rate bonds, and the interest is variable). For corporate bonds, no matter whether the business is good or bad, interest must be paid according to regulations, which is much more stable than stock dividends.

As for the difference income between buying and selling bonds, there is some uncertainty, mainly because the bond price will change with the change of market interest rate. In the short term, the change of market interest rate is generally small (or has been expected), so this uncertainty will not be very high.

Generally speaking, compared with other types of funds such as stock funds and hedge funds, the potential returns of bond funds are relatively stable and the potential risks are relatively small.