Group 1 - The Shanghai Composite Index opened lower but rose throughout the day, with the CSI 300 Computer Index reported at 5229.85 points [1] - The CSI 300 Computer Index has increased by 8.61% over the past month and 11.01% over the past three months, while it has decreased by 2.01% year-to-date [1] - The CSI 300 Index samples are categorized into 11 primary industries, 35 secondary industries, over 90 tertiary industries, and more than 200 quaternary industries [1] Group 2 - The CSI 300 Index samples are adjusted biannually, with adjustments occurring on the next trading day after the second Friday of June and December [2] - Weight factors are generally fixed until the next scheduled adjustment, but can be modified in the event of temporary adjustments [2] - Special events affecting sample companies may lead to changes in industry classification, necessitating corresponding adjustments to the CSI 300 Industry Index [2]