Active funds are not suitable to enter the market when the overall market is overvalued. As long as the market is not overvalued as a whole, investors can enter the market if they can make long-term investments. Of course, the choice of funds also needs careful analysis by investors.

if investors are not sure about the market, they can participate in the fixed investment. This can weaken investors' timing risk. In the case of uncertain market, using fixed investment is also a good strategy. Investors should weaken their timing, but don't enter the market when the bubble is big.