DCITS(SZ:000555) Jin Rong Jie·2025-07-15 12:57Group 1 - The core viewpoint of the news is the performance of the China Securities Quantum Communication Theme Index, which reflects the overall performance of listed companies related to quantum communication [1][2] - The index has shown significant growth, with a 7.92% increase over the past month, a 12.06% increase over the past three months, and a 10.81% increase year-to-date [1] - The index is composed of representative listed companies from various segments including components, equipment production, construction and operation, and operational applications related to quantum communication [1] Group 2 - The top ten weighted companies in the index include Chutianlong (5.13%), Dongxin Peace (4.12%), and Geer Software (3.4%) among others [1] - The index's holdings are primarily listed on the Shenzhen Stock Exchange (60.62%) and the Shanghai Stock Exchange (39.38%) [1] - The industry composition of the index shows that Information Technology accounts for 40.11%, Communication Services for 33.39%, and Industry for 17.74% [2] Group 3 - The index samples are adjusted semi-annually, 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 special circumstances allowing for temporary adjustments [2] - Companies that are delisted or undergo mergers, acquisitions, or splits are handled according to specific calculation and maintenance guidelines [2]