CSI 500 Index is an index developed by CSI Index Co., Ltd., and its sample space is stocks. Excluding the sample of Shanghai and Shenzhen 300 Index, the total market value of stocks in one year is generally the top 300 stocks. The remaining stocks will be sorted from high to low according to the transaction price of the past year. In the process of queuing, the lower 20% stocks will be eliminated, and the remaining stocks will be sorted according to the daily average total market value. The ranking order is still from high to low. At this time, the top 500 stocks are called sample stocks of CSI 500 Index.
Among them, CSI 500 index can be used to synthesize the scale of a securities market, especially the Shanghai and Shenzhen stock markets. According to the CSI 500 Index, we can clearly see the overall situation of companies with small market capitalization.