沪深300汽车零配件指数报5998.49点，前十大权重包含星宇股份等

Group 1 - The Shanghai Composite Index opened high and the CSI 300 Automotive Parts Index reported 5998.49 points [1] - The CSI 300 Automotive Parts Index increased by 3.11% in the last month, decreased by 7.08% in the last three months, and has declined by 5.42% 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 over 200 quaternary industries [1] Group 2 - The CSI 300 Automotive Parts Index has a market share of 87.70% from the Shanghai Stock Exchange and 12.30% from the Shenzhen Stock Exchange [1] - Within the CSI 300 Automotive Parts Index, the market share is composed of 59.93% from automotive interior and exterior parts, 13.92% from automotive system components, 13.85% from tires, and 12.30% from automotive electronics [1] Group 3 - The index sample is adjusted every six months, specifically on the second Friday of June and December [2] - Weight factors are adjusted in accordance with the sample adjustments, which occur at the same time [2] - Temporary adjustments to the CSI 300 Industry Index samples occur when there are changes in the CSI 300 Index samples due to special events or company status changes [2]