中证800商业服务与用品指数报4382.02点，前十大权重包含鼎龙股份等

Group 1 - The core index of the CSI 800 Commercial Services and Supplies Index closed at 4382.02 points, with a one-month increase of 2.83%, a three-month increase of 9.37%, and a year-to-date increase of 8.11% [1] - The CSI 800 index is categorized into 11 primary industries and 35 secondary industries, providing a comprehensive analysis tool for investors [1] - The market share of the CSI 800 Commercial Services and Supplies Index is divided between the Shanghai Stock Exchange at 57.06% and the Shenzhen Stock Exchange at 42.94% [1] Group 2 - The index sample is adjusted biannually, with adjustments occurring on the next trading day after the second Friday of June and December [2] - Weight factors are generally fixed until the next scheduled adjustment, with temporary adjustments made in response to special events affecting sample companies [2] - Companies that are delisted or undergo mergers, acquisitions, or splits will be handled according to specific calculation and maintenance guidelines [2]