This kind of differentiation is still quite big, and you will be more clear if you give a simple example ~

For example, in the first quarter of 2020, the funds in biomedical related sectors rose sharply and doubled, because the related sectors in the overall market rose greatly, and then these funds were heavyweight stocks, so the income would be more obvious.

However, other funds were relatively stable in the first quarter; Of course, this is only one of the reasons. What is important in fund management is the overall investment and research ability of fund managers and fund companies.

I hope my answer can help you. It's best to invest in something that suits you ~