Group 1 - The Shanghai Composite Index opened lower and fluctuated, with the CSI 300 Capital Goods Index reported at 3466.88 points [1] - The CSI 300 Capital Goods Index has decreased by 7.46% in the past month, 4.71% in the past three months, and 7.97% year-to-date [2] - The index is composed of listed companies in the capital goods sector selected from the CSI 300 Index, reflecting the overall performance of these companies [2] Group 2 - The top ten weights in the CSI 300 Capital Goods Index are: CATL (22.14%), Huichuan Technology (4.95%), China State Construction (4.07%), SANY Heavy Industry (4.01%), Guodian NARI (3.25%), LONGi Green Energy (3.2%), Sungrow Power (3.02%), CRRC (3.02%), Weichai Power (2.92%), and XCMG (2.64%) [2] - The market share of the CSI 300 Capital Goods Index is 50.58% from the Shenzhen Stock Exchange and 49.42% from the Shanghai Stock Exchange [2] - The industry composition of the index includes: Power Equipment (49.10%), Machinery Manufacturing (28.23%), Construction Decoration (15.50%), and Aerospace and Defense (7.17%) [2] Group 3 - The index sample is adjusted every six months, with adjustments implemented 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 special cases allowing for temporary adjustments [3] - Companies that are delisted or undergo mergers, acquisitions, or splits are handled according to calculation and maintenance guidelines [3]

Group 1 - The A-share market's three major indices closed mixed, with the CSI 300 Capital Goods Index at 3459.62 points, reflecting a decline of 7.36% over the past month, 4.91% over the past three months, and 8.16% year-to-date [1] - The CSI 300 Capital Goods Index is composed of listed companies in the capital goods sector selected from the CSI 300 Index, aiming to represent the overall performance of these companies [1] - The index's top ten weightings include CATL (22.21%), Huichuan Technology (4.91%), China State Construction (4.08%), Sany Heavy Industry (4.01%), and others, indicating a concentration in a few key players [1] Group 2 - The CSI 300 Capital Goods Index has a market composition of 50.57% from the Shenzhen Stock Exchange and 49.43% from the Shanghai Stock Exchange, showing a balanced representation between the two exchanges [1] - In terms of industry composition, the index is heavily weighted towards power equipment (49.09%), followed by machinery manufacturing (28.23%), construction decoration (15.52%), and aerospace and defense (7.16%) [1] - The index sample is adjusted biannually, with changes implemented on the next trading day after the second Friday of June and December, ensuring that the index remains reflective of the current market conditions [2]