Bond funds mainly invest in bonds, and the fund income is determined by the bonds invested. Bond yield = bond price+bond interest mainly depends on the bond price, which is similar to the stock price. A falling price means a lot of selling, and a rising price means a lot of buying.

Bond income will change the net value of the fund. In the process of investment, investors can only look at the rise and fall of net worth. Fund net value rises, fund income and fund net value fall, resulting in losses.