Jin Rong Jie·2025-06-30 12:45Group 1 - The core index of the CSI Quantum Communication Theme Index is reported at 3937.50 points, showing a low opening and a high closing trend [1] - The CSI Quantum Communication Theme Index has increased by 9.97% in the past month, 1.88% in the past three months, and 9.50% year-to-date [2] - The index includes representative listed companies related to quantum communication across various sectors such as components, equipment production, construction operation, and application [2] Group 2 - The top ten weighted companies in the CSI Quantum Communication Theme Index include Dongxin Peace (4.55%), Chutian Long (4.14%), and Aerospace Electronics (3.37%) [2] - The market distribution of the index shows that the Shenzhen Stock Exchange accounts for 60.57%, while the Shanghai Stock Exchange accounts for 39.43% [2] - The industry composition of the index indicates that Information Technology comprises 40.12%, Communication Services 32.50%, and Industry 18.55% [2] Group 3 - The index samples are adjusted every six months, with adjustments implemented on the next trading day after the second Friday of June and December [3] - Weight factors are generally fixed until the next scheduled adjustment, with special circumstances allowing for temporary adjustments [3] - Companies that are delisted or undergo mergers, acquisitions, or splits will be handled according to the calculation and maintenance guidelines [3]