CGN POWER(003816) 金融界·2025-04-29 08:23Core Points - The Shanghai Composite Index opened lower and the CSI 300 Utilities Index reported at 2662.05 points [1] - The CSI 300 Utilities Index has increased by 5.17% over the past month, 3.49% over the past three months, and has decreased by 1.65% year-to-date [1] Index Composition - The CSI 300 Utilities Index is composed of 11 primary industries, 35 secondary industries, over 90 tertiary industries, and more than 200 quaternary industries [1] - The top ten weights in the CSI 300 Utilities Index are: - Changjiang Electric Power (48.06%) - China Nuclear Power (10.21%) - Three Gorges Energy (8.19%) - Guodian Power (5.41%) - State Power Investment Corporation (4.87%) - Sichuan Investment Energy (4.38%) - Huaneng International (4.22%) - China General Nuclear Power (3.74%) - Zhejiang Energy Power (3.11%) - Huadian International (2.71%) [1] Market Distribution - The market distribution of the CSI 300 Utilities Index shows that the Shanghai Stock Exchange accounts for 95.91% and the Shenzhen Stock Exchange accounts for 4.09% [2] - In terms of industry composition within the index: - Hydropower accounts for 59.59% - Thermal power accounts for 15.45% - Nuclear power accounts for 13.96% - Wind power accounts for 8.54% - Gas accounts for 2.47% [2] Sample Adjustment - The index samples are adjusted every six months, with adjustments 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 changes in the CSI 300 Index samples [2]