Jin Rong Jie·2025-05-28 07:38Group 1 - The Shanghai Composite Index opened high and fluctuated, with the CSI 300 Automotive and Parts Index reported at 10,259.58 points [1] - The CSI 300 Automotive and Parts Index has increased by 1.85% in the past month, decreased by 3.70% in the past three months, and increased by 4.84% year-to-date [1] - The CSI 300 Index is categorized into 11 primary industries, 35 secondary industries, over 90 tertiary industries, and more than 200 quaternary industries [1] Group 2 - The top ten weights in the CSI 300 Automotive and Parts Index are: BYD (38.8%), Seres (12.98%), Fuyao Glass (10.8%), SAIC Motor (8.68%), Changan Automobile (7.05%), Top Group (3.81%), Sailun Tire (3.78%), Desay SV (3.3%), Huayu Automotive (3.27%), and Great Wall Motors (3.25%) [1] - The market segments of the CSI 300 Automotive and Parts Index are composed of 50.84% from the Shanghai Stock Exchange and 49.16% from the Shenzhen Stock Exchange [2] - The industry composition of the CSI 300 Automotive and Parts Index includes 72.76% from passenger cars, 16.35% from automotive interior and exterior parts, 3.81% from automotive system components, 3.78% from tires, and 3.30% from automotive electronics [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 each year [2] - Weight factors are generally fixed until the next scheduled adjustment, with temporary adjustments made when the CSI 300 Index samples are modified [2] - Special events affecting sample companies may lead to adjustments in the CSI 300 industry index samples, including delisting, mergers, acquisitions, and spin-offs [2]