Geovis(SH:688568) Sou Hu Cai Jing·2025-05-20 11:58Group 1 - The Shanghai Stock Exchange Composite Index increased by 0.38%, while the Shanghai National New Sci-Tech Board State-Owned Enterprise Index decreased by 0.19%, closing at 972.15 points with a trading volume of 11.629 billion yuan [1] - The Shanghai National New Sci-Tech Board State-Owned Enterprise Index has risen by 1.13% over the past month, declined by 4.42% over the past three months, and increased by 0.12% year-to-date [1] - The index reflects the overall performance of state-owned enterprises listed on the Sci-Tech Board, selected from securities listed on the Sci-Tech Board that are either state-owned enterprises or have state capital participation without actual control [1] Group 2 - The top ten weighted stocks in the index include: China Resources Microelectronics (5.98%), Haiguang Information (5.73%), Western Superconducting (5.41%), Huahai Qingke (5.32%), SMIC (5.21%), Jinghe Integrated (3.97%), Zhongwei Company (3.90%), Huahong Semiconductor (3.66%), Zhongke Star Map (3.63%), and China Communication Signal (3.22%) [1] - The index's holdings are entirely from the Shanghai Stock Exchange, with a 100% allocation [1] - The industry composition of the index includes: Information Technology (53.86%), Industrial (30.03%), Materials (9.96%), Healthcare (3.53%), and Communication Services (2.62%) [2] Group 3 - 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 adjusted in accordance with the periodic sample adjustments, which are fixed until the next scheduled adjustment unless a special situation arises [2] - Companies that are delisted or undergo mergers, acquisitions, or splits will be processed according to the calculation and maintenance guidelines [2]