1 and CSI 500 Index are one of the indexes developed by CSI Index Co., Ltd. The stocks in the sample space are the top 300 stocks after deducting the sample stocks of CSI 300 Index and the daily average total market value of the latest year. The rest of the stocks are sorted from high to low according to the average daily turnover of the latest year (since the IPO was listed), and the remaining stocks are sorted from high to low according to the average daily total market value after 20% of the stocks are excluded. The CSI 500 Index comprehensively reflects the overall situation of small-cap companies in Shanghai and Shenzhen stock markets.
2. CSI 500 stock index futures are stock index futures with CSI 500 index as the investment target. The full name of stock index futures (SPIF) is stock index futures, which can also be called stock index futures and futures index. It refers to the futures varieties with stock index as the subject matter. Trading, like ordinary commodity futures trading, has the same characteristics and belongs to a kind of financial derivatives.