Group 1 - The core index, the China Securities TMT Index, opened lower but closed higher, increasing by 1.33% to 3899.25 points with a trading volume of 446.04 billion yuan [1] - Over the past month, the China Securities TMT Index has decreased by 15.78%, while it has increased by 8.69% over the last three months and by 1.97% year-to-date [1] - The index is based on the comprehensive index samples of the Shanghai-Hong Kong Stock Connect and the China Securities 500 Index, reflecting the overall performance of securities listed in the Shanghai, Hong Kong, and Shenzhen markets [1] Group 2 - The top ten holdings of the China Securities TMT Index include Alibaba (11.88%), Tencent (10.61%), Xiaomi (5.38%), China Mobile (3.48%), and SMIC (1.55%) among others [1] - The market segment distribution shows that the Hong Kong Stock Exchange accounts for 41.03%, the Shenzhen Stock Exchange for 33.09%, and the Shanghai Stock Exchange for 25.88% [2] - In terms of industry composition, information technology represents 54.28%, communication services 33.66%, and consumer discretionary 12.06% [2] Group 3 - The 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, with special circumstances allowing for temporary adjustments [2] - Changes in the index samples due to delisting, mergers, or other corporate actions are handled according to specific maintenance guidelines [2]