There is no obvious rule to follow. The main thing is to buy funds with excellent performance, not whether it is better to buy one fund or two or three funds separately.
But relatively speaking, buying funds from several companies, to be precise, buying different styles of funds is easier to spread risks. Otherwise, there may be a fund company's funds holding the same shares to keep warm. When the general trend is good, it will rise collectively, and when the general trend is not good, it will be a situation of skyrocketing and plunging. This is not without precedent. For example, TEDA Manulife Fund suffered a terrible decline at the beginning of the year because its funds are highly similar and all pharmaceutical stocks are the same. < P > As a fund, it is better to avoid this risk as much as possible, unless you just like excitement and take high risks to get high returns.