中证空天一体军工指数下跌0.01%，前十大权重包含中航机载等

Core Viewpoint - The China Securities Index for Aerospace and Military Industry (空天军工指数) shows mixed performance with a slight decline on the latest trading day, but has seen positive growth over the past month, three months, and year-to-date [1]. Group 1: Index Performance - The Aerospace and Military Industry Index closed at 2044.48 points, down 0.01% on the latest trading day, with a trading volume of 16.234 billion yuan [1]. - Over the past month, the index has increased by 3.76%, by 6.98% over the last three months, and by 6.27% year-to-date [1]. Group 2: Index Composition - The index includes leading companies related to the aerospace and military strategy, covering sectors such as aircraft, power and control systems, early warning systems, weapon systems, C4ISR systems, military digitalization, and aerospace materials [1]. - The top ten weighted companies in the index are: AVIC Shenyang Aircraft (9.05%), AVIC Optoelectronics (6.94%), Aero Engine Corporation of China (6.93%), AVIC Xi'an Aircraft (5.4%), AVIC Aircraft (4.08%), Aerospace Electronics (3.7%), Haige Communications (3.53%), Filihua (3.48%), AVIC Chengfei (3.42%), and Ruichuang Micro-Nano (3.38%) [1]. Group 3: Market and Sector Breakdown - The index's holdings are primarily listed on the Shanghai Stock Exchange (55.81%) and Shenzhen Stock Exchange (44.19%) [2]. - The industry composition of the index includes: Industrial sector (71.97%), Materials (13.79%), Information Technology (8.12%), and Communication Services (6.12%) [2]. Group 4: Index Adjustment Mechanism - The index samples are adjusted semi-annually, with adjustments occurring on the next trading day after the second Friday of June and December each year [2]. - Weight factors are generally fixed until the next scheduled adjustment, with special circumstances allowing for temporary adjustments [2]. Group 5: Related Investment Funds - Public funds tracking the Aerospace and Military Industry Index include Penghua China Securities Aerospace and Military Industry C and A [3].