Group 1 - The core viewpoint of the news highlights the strong performance of the China Securities Cloud Computing and Big Data Theme Index, with significant gains in constituent stocks such as Xinyiseng and Cloud Tianli Fei, indicating a positive trend in the cloud computing and big data sectors [1][2] - As of July 15, 2025, the Big Data ETF has seen a cumulative increase of 5.99% over the past week, ranking it in the top 20% among comparable funds, reflecting strong investor interest in this sector [1][2] - Nvidia's founder Jensen Huang announced that the U.S. has approved Nvidia to sell H20 chips to China, which is expected to positively impact cloud computing services and large model training, as major internet companies are actively purchasing these chips [1] Group 2 - China Galaxy Securities reports a continuous growth in overseas token demand, suggesting a positive feedback loop between AI computing power and applications, and recommends focusing on domestic NV chain-related companies [2] - The Big Data ETF closely tracks the China Securities Cloud Computing and Big Data Theme Index, which includes 50 listed companies involved in cloud computing services, big data services, and related hardware, reflecting the overall performance of these sectors [2] - As of June 30, 2025, the top ten weighted stocks in the China Securities Cloud Computing and Big Data Theme Index account for 51.84% of the index, indicating a concentration of investment in key players like iFlytek and Zhongji Xuchuang [2]

Group 1 - The Shanghai Composite Index increased by 0.21%, while the CSI 300 Computer Index reported 1295.05 points [1] - The CSI 300 Computer Index has risen by 0.06% in the past month, declined by 17.54% over the past three months, and decreased by 2.43% year-to-date [1] - The CSI 300 Index categorizes its 300 sample stocks into 11 primary industries, 35 secondary industries, over 90 tertiary industries, and more than 200 quaternary industries [1] Group 2 - The CSI 300 Computer Index holdings are composed of 57.28% from the Shanghai Stock Exchange and 42.72% from the Shenzhen Stock Exchange [1] - Within the CSI 300 Computer Index, the allocation is 56.61% for general software, 35.22% for industry application software, and 8.16% for cloud computing services [1] 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, but can change with temporary adjustments due to special events affecting sample companies [2] - Companies that are delisted or undergo mergers, acquisitions, or splits will be handled according to calculation and maintenance guidelines [2]