AtHub(SH:603881) Jin Rong Jie·2025-08-05 12:52Group 1 - The core index, the CSI 1000 Quality Index, has shown a significant increase, with a rise of 5.05% over the past month, 10.02% over the past three months, and 10.53% year-to-date [2] - The CSI 1000 Quality Index is composed of 100 listed companies selected from the CSI 1000 Index based on their stability in operations, profitability, and quality of earnings [2] - The index was established on December 31, 2010, with a base value of 1000.0 points [2] Group 2 - The top ten weighted companies in the CSI 1000 Quality Index include Tonghua Golden Horse (3.49%), Longxin General (2.22%), and Jibite (2.18%) among others [2] - The market capitalization distribution shows that 53.29% of the holdings are from the Shenzhen Stock Exchange, while 46.71% are from the Shanghai Stock Exchange [2] Group 3 - The industry composition of the CSI 1000 Quality Index includes 22.74% in healthcare, 20.10% in industrials, and 14.29% in information technology, among others [3] - The index samples are adjusted biannually, with changes implemented on the next trading day following the second Friday of June and December [3] - Adjustments to the index may occur under special circumstances, such as delisting or corporate actions like mergers and acquisitions [3]