中证1000、中证500、中证A500指数样本调整1月9日收市后生效

Group 1 - The core viewpoint of the news is the adjustment of the China Securities Indexes, specifically the inclusion and exclusion of certain companies in the CSI 1000, CSI 500, and CSI A500 indices, effective after the market close on January 9 [1][2] - Chipone Technology is added to the CSI 500 index, Mingyue Lens to the CSI 1000 index, and BGI Genomics to the CSI A500 index, while ST Renfu is removed from both the CSI 500 and CSI A500 indices, and Chipone Technology is also removed from the CSI 1000 index [1] - The CSI 1000 index, established on December 31, 2004, with a base point of 1000, reflects the overall performance of small-cap stocks in the A-share market, with a sample selection method that excludes stocks from the CSI 800 index and the top 300 by total market capitalization [1][2] Group 2 - The CSI 500 index reflects the overall performance of small-cap companies in the A-share market, consisting of the top 500 stocks by market capitalization after excluding stocks from the CSI 300 index and the top 300 by total market capitalization, also established on December 31, 2004, with a base point of 1000 [2] - The CSI A500 index, also established on December 31, 2004, with a base point of 1000, selects 500 larger market capitalization securities from various industries to represent the overall performance of the most representative listed companies, primarily in industries such as industrial, financial, information technology, and materials [2] - Industry insiders indicate that recent adjustments to the CSI series indices are increasingly leaning towards technology innovation and high-end manufacturing, reflecting a "vote" from the capital market on industry trends, suggesting that industries continuously included in the indices often represent sectors supported by both policy and market [2]