Group 1 - The core viewpoint of the news is the performance of the CSI All Share Public Utilities Index, which closed at 2560.34 points with a trading volume of 12.994 billion yuan, showing a decline of 1.81% over the past month, an increase of 0.92% over the past three months, and a year-to-date decline of 3.37% [1] - The CSI All Share Public Utilities Index is composed of listed companies selected based on liquidity and market capitalization criteria, reflecting the overall performance of representative and investable securities in various industries [1] - The top ten weighted stocks in the CSI All Share Public Utilities Index include: Changjiang Electric Power (14.08%), China Nuclear Power (8.94%), Three Gorges Energy (7.3%), Guodian Power (4.83%), State Power Investment (4.43%), Huaneng International (3.95%), Yongtai Energy (3.81%), Chuanwei Energy (3.59%), China General Nuclear Power (3.43%), and Zhejiang Energy (2.49%) [1] Group 2 - The CSI All Share Public Utilities Index is primarily composed of public utility companies, with a 100% allocation to this sector [1] - The index is adjusted semi-annually, with sample adjustments occurring on the next trading day after the second Friday of June and December each year [2] - In the event of special occurrences affecting sample companies, such as delisting or changes in industry classification, the index samples will be adjusted accordingly [2]