(1) If it is a pure bond fund, it should be bought when the interest rate market goes down and the money market is loose, and redeemed when the interest rate goes up and the money is tight.
(2) If it is a hybrid bond fund, there will generally be a certain proportion of stocks in it. At this time, we should pay close attention to the stock market and redeem it when the stock market goes down.
In the current market situation, it is recommended to hold pure debt funds for a long time.