The first strategy of investing in index funds is: when the market growth stocks perform strongly, the funds that follow the market growth stock index perform well, which fully reflects the rise of the index. If investors think that the market outlook is bullish, they should choose index funds to share the gains brought by the index rise.

The second strategy is that although index funds are passive investments, fund management companies still need strong management ability to select index targets, reduce tracking errors and reduce trading operations. First of all, the performance of an index fund depends on the underlying index it chooses. Secondly, the evaluation of index funds and their fund managers should not pay too much attention to short-term performance, but should take tracking error as an important indicator.