Group 1 - The core viewpoint of the news is the performance of the CSI 800 Commercial Services and Supplies Index, which has shown an increase of 0.85% over the past month, 2.40% over the past three months, and 8.43% year-to-date [1] - The CSI 800 index is categorized into 11 primary industries and 35 secondary industries, providing a comprehensive analysis tool for investors [1] - The index is based on a reference date of December 31, 2004, with a base point of 1000.0 [1] Group 2 - The CSI 800 Commercial Services and Supplies Index has a market share distribution of 58.42% from the Shanghai Stock Exchange and 41.58% from the Shenzhen Stock Exchange [1] - Within the index's holdings, the market services sector accounts for 46.99%, office services and supplies for 27.14%, other commercial services and supplies for 22.31%, and traders for 3.56% [1] - The index samples are adjusted biannually, with adjustments occurring on the next trading day after the second Friday of June and December [2]

Group 1 - The core index of the CSI 800 Commercial Services and Supplies Index is reported at 4268.80 points, with a recent one-month decline of 3.42%, a three-month increase of 8.42%, and a year-to-date increase of 5.31% [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 composed of 56.65% from the Shanghai Stock Exchange and 43.35% from the Shenzhen Stock Exchange [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]

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]

Group 1 - The core index of the A-share market showed mixed performance, with the China Securities Energy Index rising by 0.89% to 2609.76 points, with a trading volume of 9.268 billion yuan [1] - Over the past month, the China Securities Energy Index has decreased by 2.70%, down 8.34% over the last three months, and down 13.01% year-to-date [1] - The top ten weighted stocks in the China Securities Energy Index include China Shenhua (15.98%), China Petroleum (13.33%), and China Petrochemical (12.31%) [1] Group 2 - The China Securities Energy Index is composed entirely of energy sector stocks, with a 100% industry representation [2] - The index samples are adjusted biannually, with adjustments occurring on the next trading day after the second Friday of June and December [2] - Temporary adjustments to the index samples occur when the China Securities 800 Index undergoes changes, and companies that experience special events affecting their industry classification will also lead to adjustments in the index [2]