It seems that the funds sold by Postal Savings Bank do not account for a large proportion in the whole fund market. If it is subdivided into bond funds, the proportion is even smaller. You can go to the four major banks. If you must choose the Postal Savings Bank, it is recommended to look at the Southern CSI 50 Bond Index Fund. A fund that tracks bond index prices. In addition to money funds, bond funds also have risks, but the risks are smaller than those of stock-based hybrid funds.