Core Viewpoint - The China Defense Index has shown significant growth, with a 7.56% increase over the past month and a 9.00% increase year-to-date, reflecting strong performance in the defense sector [1][2] Group 1: Index Performance - The China Defense Index rose by 4.79% to 1627.64 points, with a trading volume of 52.298 billion yuan [1] - The index has increased by 5.41% over the past three months [1] - The index was established on June 30, 2011, with a base value of 1000.0 points [1] Group 2: Index Composition - The top ten weighted companies in the China Defense Index include: AVIC Shenyang Aircraft (7.55%), AVIC Optoelectronics (6.24%), Aero Engine Corporation (6.03%), AVIC Xi'an Aircraft (4.62%), AVIC Avionics (3.55%), Haige Communications (3.38%), Aerospace Electronics (3.21%), Ruichuang Micro-Nano (3.03%), AVIC Chengfei (3.01%), and Western Superconducting (2.85%) [1] - The index is composed of companies that are either part of the top ten military industrial groups or have contracts with the military for equipment supply [1] Group 3: Market and Sector Breakdown - The Shanghai Stock Exchange accounts for 55.77% of the index holdings, while the Shenzhen Stock Exchange accounts for 44.23% [2] - The industrial sector dominates the index with a 74.71% share, followed by materials at 12.49%, information technology at 7.10%, and communication services at 5.70% [2] Group 4: Index Adjustment Mechanism - The index samples are adjusted biannually, with changes implemented 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]