The full name of convertible bonds is convertible corporate bonds, which have the properties of bonds, that is, they have interest at maturity. It also has the nature of stock, because convertible bonds can be converted into stocks at a predetermined price according to regulations.
To put it bluntly, convertible bond fund is an intermediate between hybrid fund and debt base. The increase of convertible bond funds is high because the share price has soared, because the original agreed conversion price is much lower than the current share price.