According to the absolute value and relative value of P/E ratio (historical percentile, more than five years), the currently underestimated indexes include CSI Media, CSI Military Industry, CSI Environmental Protection, CSI 500, Standard & Poor's Dividend and 300 Medicine.

The investment targets of relevant index funds can be considered as follows: media ETF(5 12980), military ETF(5 12660), environmental ETF(5 12580) and medical ETF(5 122 10).