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]

Core Points - The Shanghai Composite Index opened lower but rose throughout the day, with the CSI 300 Aerospace and Defense Index reported at 9532.53 points [1] Group 1: Index Performance - The CSI 300 Aerospace and Defense Index has increased by 5.99% over the past month and 4.40% over the last three months, but has decreased by 7.53% year-to-date [2] - The index is designed to reflect the overall performance of different industry securities within the CSI 300 Index, categorized into 11 primary industries, 35 secondary industries, over 90 tertiary industries, and more than 200 quaternary industries [2] Group 2: Index Composition - The CSI 300 Aerospace and Defense Index is composed entirely of the aviation sector, with a 100% weight [3] - The index samples are adjusted biannually, with adjustments occurring on the next trading day following the second Friday of June and December each year [3] - Weight factors are generally fixed until the next scheduled adjustment, with temporary adjustments made in response to changes in the CSI 300 Index samples or significant events affecting sample companies [3]

Group 1 - The A-share market's three major indices closed mixed, with the CSI 300 Aerospace and Defense Index at 9125.20 points [1] - The CSI 300 Aerospace and Defense Index has decreased by 5.87% over the past month, 4.26% over the past three months, and 11.48% year-to-date [2] - The CSI 300 Index is categorized into 11 primary industries, 35 secondary industries, over 90 tertiary industries, and more than 200 quaternary industries, providing a comprehensive analysis tool for investors [2] Group 2 - The CSI 300 Aerospace and Defense Index is composed entirely of the aviation sector, with a sample adjustment occurring biannually [3] - The index's sample is adjusted on the second Friday of June and December, with weight factors fixed until the next scheduled adjustment [3] - In cases of special events affecting a sample company's industry classification, the CSI 300 industry index samples will be adjusted accordingly [3]

Group 1 - The Shanghai Composite Index opened lower but rose later, with the CSI 300 Aerospace and Defense Index reported at 9250.77 points [1] - The CSI 300 Aerospace and Defense Index has decreased by 5.27% in the past month, 5.06% in the past three months, and 10.26% year-to-date [1] - The CSI 300 Index categorizes its 300 sample stocks into 11 primary industries, 35 secondary industries, over 90 tertiary industries, and more than 200 quaternary industries for analytical purposes [1] Group 2 - The CSI 300 Aerospace and Defense Index has a market share distribution of 58.24% from the Shanghai Stock Exchange and 41.76% from the Shenzhen Stock Exchange [1] - The index's holdings are entirely concentrated in the aviation sector, with a 100.00% allocation [1] Group 3 - The index samples are adjusted biannually, 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, but can change with temporary adjustments due to special events affecting sample companies [2] - Companies that are delisted or undergo mergers, acquisitions, or splits will be handled according to specific calculation and maintenance guidelines [2]

Group 1 - The Shanghai Composite Index opened lower but rose later, with the CSI 300 Aerospace and Defense Index reported at 9331.96 points [1] - The CSI 300 Aerospace and Defense Index has decreased by 3.97% in the past month, 3.20% in the past three months, and 9.47% year-to-date [1] - The CSI 300 Index categorizes its 300 sample stocks into 11 primary industries, 35 secondary industries, over 90 tertiary industries, and more than 200 quaternary industries [1] Group 2 - The CSI 300 Aerospace and Defense Index has a market share of 58.33% from the Shanghai Stock Exchange and 41.67% from the Shenzhen Stock Exchange [1] - The index's holdings are entirely in the aviation sector, with a 100.00% allocation [1] Group 3 - The index samples are adjusted biannually, 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, but can change with temporary adjustments due to special events affecting sample companies [2] - Companies that are delisted or undergo mergers, acquisitions, or splits will be handled according to specific calculation and maintenance guidelines [2]