沪深300航天国防指数报10598.53点，前十大权重包含中航西飞等

Core Points - The Shanghai Composite Index opened high and the CSI 300 Aerospace and Defense Index reported 10,598.53 points [1] - The CSI 300 Aerospace and Defense Index has increased by 3.59% in the past month, 6.85% in the past three months, and 2.81% year-to-date [2] - The index is designed to reflect the overall performance of different industry companies within the CSI 300 Index, categorized into 11 primary industries, 35 secondary industries, over 90 tertiary industries, and more than 200 quaternary industries [2] Industry Composition - The CSI 300 Aerospace and Defense Index has a 100% allocation to the aviation sector [3] - The index samples are adjusted biannually, with adjustments occurring 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 temporary adjustments made in response to changes in the CSI 300 Index [3]