represents the weighted index of the large market, that is, the large market index calculated by considering the proportion of the stock equity in the total market equity, which is the actual index of the large market published by the stock exchange every day.

(2) The yellow curve

indicates that the market does not contain weighted indicators, that is, the market index is calculated by the average share capital of the whole market regardless of the number of shares.

According to the relative position of the white-yellow curve, we can know that:

① When the market index rises, the yellow line is above the white line, which means that the stocks with smaller circulation are bigger than the large-cap stocks; On the contrary, small-cap stocks lag behind large-cap stocks.

② When the market index falls, the yellow line is above the white line, which means that the stocks with smaller circulation are less than the large-cap stocks; On the contrary, small-cap stocks fell more than large-cap stocks.