Group 1 - The core index, the China Securities National New State-Owned Enterprise Aerospace Technology Index, experienced a decline of 0.6%, closing at 2448.02 points with a trading volume of 12.644 billion yuan [1] - Over the past month, the index has increased by 6.52%, by 10.78% over the last three months, and by 6.04% year-to-date [1] - The index comprises 40 representative listed companies from state-owned enterprises involved in aerospace equipment, materials, information, and security, reflecting the overall performance of state-owned enterprises in the aerospace technology sector [1] Group 2 - The top ten weighted stocks in the index include: Aero Engine Corporation (9.22%), AVIC Xi'an Aircraft Industry (8.54%), AVIC Optoelectronics (7.66%), AVIC Shenyang Aircraft Corporation (5.82%), Hongdu Aviation (4.65%), Northern Navigation (4.31%), AVIC Aircraft (3.97%), AVIC High-Tech (3.96%), Aerospace Electronics (3.90%), and Zhongke Star Map (3.84%) [1] - The market segment distribution of the index holdings shows that the Shanghai Stock Exchange accounts for 63.84%, the Shenzhen Stock Exchange for 35.51%, and the Beijing Stock Exchange for 0.65% [1] - In terms of industry composition, the index holdings are primarily in the industrial sector (82.73%), followed by materials (5.90%), information technology (5.08%), communication services (4.65%), and consumer discretionary (1.65%) [2] Group 3 - The index samples are adjusted biannually, with adjustments occurring on the next trading day after the second Friday of June and December each year [2] - Weight factors are adjusted in accordance with the sample changes, and generally remain fixed until the next scheduled adjustment [2] - In special circumstances, the index may undergo temporary adjustments, such as when a sample company is delisted or undergoes mergers, acquisitions, or splits [2]
中证国新国企航空航天科技指数下跌0.6%,前十大权重包含中航沈飞等