Sou Hu Cai Jing·2025-06-27 14:26Group 1 - The A-share market's three major indices closed mixed, with the Shanghai National New Sci-Tech Board State-Owned Enterprises Index down 0.05% at 999.69 points, with a trading volume of 17.032 billion yuan [1] - The Shanghai National New Sci-Tech Board State-Owned Enterprises Index has increased by 3.65% in the past month, 0.32% in the past three months, and 2.81% year-to-date [1] - This index reflects the overall performance of state-owned enterprises listed on the Sci-Tech Board, selected from companies with state capital participation and no actual controller, with a base date of December 30, 2022, set at 1000.0 points [1] Group 2 - The top ten weighted stocks in the index include Huahai Qingke (5.82%), Huaron Micro (5.23%), SMIC (5.06%), Haiguang Information (5.02%), and others, with the Shanghai Stock Exchange accounting for 100% of the index's holdings [1] - In terms of industry composition, the index's sample shows that Information Technology accounts for 54.77%, Industry for 28.86%, Materials for 8.94%, Communication Services for 5.21%, and Healthcare for 2.24% [2] - The index samples are adjusted biannually, with adjustments occurring on the next trading day after the second Friday of June and December, and weights are fixed until the next adjustment unless special circumstances arise [2]