But bonds and stocks have a certain seesaw effect. When the stock market is good, investors' funds will flow into the stock market in large quantities, leading to the outflow of funds from the bond market and the decline of the bond market. When the stock market is not good, investors will withdraw from the stock market and seek safe investment targets. Bonds are a better choice, and a large amount of funds will flow into the bond market, which will make the bond market rise.