

Group 1 - The core viewpoint of the news is that the A-share market showed mixed performance with the China Securities Urban Transportation Index closing at 2307.55 points [1] - The China Securities Urban Transportation Index has decreased by 5.83% over the past month, increased by 0.57% over the past three months, and has declined by 2.92% year-to-date [2] - The index series reflects the performance of listed companies influenced by changes in economic and consumption structures, focusing on themes such as intensive, intelligent, and green low-carbon development [2] Group 2 - The top ten weighted stocks in the China Securities Urban Transportation Index include BYD (12.97%), Huichuan Technology (5.32%), and others, indicating a concentration in specific companies [2] - The index's holdings are primarily listed on the Shenzhen Stock Exchange (60.23%) and the Shanghai Stock Exchange (39.77%) [2] - The industry composition of the index shows that industrials account for 40.14%, consumer discretionary for 28.98%, and information technology for 16.08%, among others [2] Group 3 - The index sample is adjusted biannually, with changes implemented on the next trading day following the second Friday of June and December [3] - Weight factors are generally fixed until the next scheduled adjustment, with special circumstances allowing for temporary adjustments [3] - Companies that are delisted or undergo mergers, acquisitions, or splits are handled according to specific calculation and maintenance guidelines [3]