Jin Rong Jie·2025-05-27 07:59Group 1 - The Shanghai Composite Index opened lower and fluctuated, with the Shanghai Utilities Index rising by 0.06% to 4647.84 points and a trading volume of 22.849 billion yuan [1] - The Shanghai Utilities Index has increased by 1.94% over the past month, 1.41% over the past three months, and has decreased by 2.47% year-to-date [1] - The index is categorized into five major sectors: industrial, commercial, real estate, utilities, and comprehensive, reflecting the economic conditions and overall performance of listed companies in these sectors [1] Group 2 - The top ten weighted stocks in the Shanghai Utilities Index include: Beijing-Shanghai High-Speed Railway (8.12%), China Nuclear Power (5.64%), Huaneng Hydropower (5.07%), China Unicom (4.82%), Shanghai Port Group (3.75%), Daqin Railway (3.74%), Three Gorges Energy (3.46%), China Communications Construction (2.91%), Air China (2.85%), and China Railway Construction (2.53%) [1] - The sample of the Shanghai Utilities Index is composed entirely of stocks listed on the Shanghai Stock Exchange, with a total market share of 100% [1] Group 3 - In terms of industry composition within the Shanghai Utilities Index, industrial sector accounts for 51.73%, utilities for 33.68%, communication services for 8.87%, consumer discretionary for 1.72%, energy for 1.67%, financials for 1.10%, materials for 0.86%, and real estate for 0.37% [2] - The criteria for inclusion in the index require securities to have a daily average market capitalization ranking in the top 10 of the Shanghai market after three months of listing, while other securities are included after one year [2] - Securities under risk warning measures are removed from the index starting from the second Friday of the month following the implementation, while those that have their risk warning lifted are included from the next trading day after the second Friday of the following month [2]