Bond funds mainly invest in government bonds, financial bonds, corporate bonds, local government bonds, etc. All bonds have coupon rate. If bond funds have no income, the possible reasons are as follows:

1. The trading time of bond funds is at 3: pm, and the income of that day will not be updated until 9: pm, so when there is no update, the income of products will not be seen.

2. There is no income on weekends and holidays. There are two sources of income for bond funds. One is the coupon rate of bonds, which has income every day, but it will be paid together on Monday when the weekend is not counted. The other part is the income from fund managers investing in trading bonds. The stock and bond markets are closed on weekends, so there will be no income.

3. It may be that the product is in a closed period. For example, the closed period of a bond fund is one month, and only after it is opened one month, some funds will announce the yield, so they will not see it within this month, but they will know how much the income is after it is opened.