Jin Rong Jie·2025-07-09 09:11Group 1 - The core index of the A-share market, the China Securities Industrial 4.0 Index, closed down by 0.49% at 3904.5 points with a trading volume of 43.951 billion yuan [1] - Over the past month, the China Securities Industrial 4.0 Index has increased by 3.35%, by 12.78% over the last three months, and by 4.33% year-to-date [1] - The index reflects the overall performance of companies related to Industrial 4.0, including control hardware, control software, and terminal hardware providers [1] Group 2 - The top ten weighted stocks in the China Securities Industrial 4.0 Index include Industrial Fulian (6.27%), Zhongke Shuguang (5.42%), and Lixun Precision (5.38%) [1] - The market capitalization distribution shows that 56.43% of the index is from the Shenzhen Stock Exchange, 43.35% from the Shanghai Stock Exchange, and 0.22% from the Beijing Stock Exchange [1] - The index sample is adjusted quarterly, with adjustments occurring in the second Friday of March, June, September, and December [2] Group 3 - The industry composition of the index sample indicates that information technology accounts for 60.75%, industrial sector for 33.51%, and communication services for 5.74% [2] - Weight factors are generally fixed until the next scheduled adjustment, with special circumstances allowing for temporary adjustments [2] - Companies that are delisted or undergo mergers, acquisitions, or splits will be handled according to the calculation and maintenance guidelines [2]