Group 1 - The core index of the A-share market, the China Securities Core Competitiveness 50 Index, closed down by 0.21% at 1039.0 points, with a trading volume of 26.253 billion yuan [1] - Over the past month, the index has increased by 2.07%, by 1.07% over the last three months, and by 3.44% year-to-date [1] - The index is based on a methodology from Zhejiang University of Finance and Economics, selecting 50 securities with high scores in governance, finance, innovation, and social responsibility [1] Group 2 - The top ten weighted stocks in the index include: Heng Rui Medicine (10.5%), Huichuan Technology (6.47%), Northern Huachuang (6.09%), Mindray Medical (6.03%), Haiguang Information (5.72%), Hikvision (4.67%), China Petroleum (4.08%), Luzhou Laojiao (3.98%), Zhaoyi Innovation (3.69%), and Changan Automobile (2.7%) [1] - The index's holdings are primarily from the Shenzhen Stock Exchange (51.28%) and the Shanghai Stock Exchange (48.72%) [1] Group 3 - The industry composition of the index includes: healthcare (23.04%), information technology (22.06%), industrials (17.76%), materials (14.93%), consumer staples (9.91%), consumer discretionary (7.43%), energy (4.08%), and utilities (0.80%) [2] - The index samples are adjusted annually, with changes implemented on the next trading day after the second Friday of June [2] - Public funds tracking the index include Minsheng Jianyin China Securities Core Competitiveness 50 ETF and Huatai-PB China Securities Core Competitiveness 50 ETF [2]