中证全指复合型公用事业指数报3418.79点，前十大权重包含联美控股等

Core Points - The China Securities Index Composite Public Utility Index closed at 3418.79 points, showing a decline of 2.42% over the past month, an increase of 3.50% over the past three months, and a year-to-date increase of 6.46% [1] - The index is designed to reflect the overall performance of different industry companies within the sample, categorized into 11 primary industries, 35 secondary industries, over 90 tertiary industries, and more than 200 quaternary industries [1] - The index's top ten holdings include Hengtong Optic-Electric (18.67%), Lianmei Holdings (17.39%), Fuchun Environmental (9.91%), Ningbo Energy (8.15%), and others [1] - The Shanghai Stock Exchange accounts for 73.80% of the index's holdings, while the Shenzhen Stock Exchange accounts for 26.20% [1] Industry Analysis - The sample of the China Securities Index Composite Public Utility Index is entirely composed of the heating and other sectors, with a 100.00% weight in this category [2] - The index sample is adjusted biannually, with changes implemented on the next trading day following the second Friday of June and December each year [2] - Weight factors are generally fixed until the next scheduled adjustment, with temporary adjustments made in response to special events affecting sample companies [2]