If investors invest in stock funds and index funds, they need to look at the market. The theme of such funds is related to the market, and the trend of the market will affect their trend, that is, the rise of the market will promote the rise of such funds, and the decline of the market will lead to the decline of such funds.

Money funds and bond funds mainly invest in the money market and bond market, and the trend of the broader market has little influence on them. Investors can trade such funds without looking at the broader market.

Generally speaking, it is reasonable to look at the market occasionally to judge the rise and fall of the fund, but don't operate frequently after watching the market trend, which is easy to lose money.