万亿规模沪深300ETF调仓在即，“小登”取代“老登”是好事吗？

Core Viewpoint - The upcoming semi-annual adjustment of the CSI 300 Index will take effect on December 12, with significant changes in its constituent stocks, reflecting the evolving market structure and increasing representation of emerging industries [1][2]. Group 1: Index Adjustments - The CSI 300 Index will replace 11 stocks, including Shenghong Technology, Dongshan Precision, and Ruixin Microelectronics, while removing stocks like Foster and TCL Zhonghuan [2]. - The adjustments will increase the number of stocks in the information technology and communication services sectors by 4 and 2, respectively, raising their weights by 1.46% and 0.75% [2]. Group 2: New Entrants - New entrants to the CSI 300 Index include: - Dongshan Precision (Market Cap: 138.03 billion, 1-month change: +3.18%, 1-year change: +176.22%) - Ruixin Microelectronics (Market Cap: 75.98 billion, 1-month change: +4.13%, 1-year change: +114.78%) - Shenghong Technology (Market Cap: 249.80 billion, 1-month change: -8.02%, 1-year change: +560.95%) [3]. Group 3: Exiting Stocks - Stocks being removed from the index include: - Foster (Market Cap: 36.29 billion, 1-month change: -14.92%, 1-year change: -13.93%) - TCL Zhonghuan (Market Cap: 359.84 billion, 1-month change: -11.53%, 1-year change: -12.57%) - Yiqi Liberation (Market Cap: 34.89 billion, 1-month change: -3.14%, 1-year change: -18.57%) [5]. Group 4: Industry Trends - The CSI 300 Index is increasingly reflecting "new quality productivity," with a notable shift in industry weightings; the financial sector's weight has decreased from 35.45% in 2016 to 22.97% in 2025, while the information technology sector has risen from 9.22% to 20.38% [9]. - The trend indicates a growing emphasis on technology and innovation, aligning with national strategic priorities and the capital market's evolution [12].