Jin Rong Jie·2025-07-10 07:51Core Viewpoint - The Shanghai Composite Index opened lower but rose throughout the day, with the CSI 300 Transportation Index reported at 3817.95 points, reflecting a recent decline of 1.38% over the past month, an increase of 3.61% over the past three months, and a year-to-date decline of 1.63% [1] Group 1: Index Composition and Performance - The CSI 300 Transportation 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 [1] - The index is based on a sample of 300 stocks from the CSI 300 Index, with a base date of December 31, 2004, and a base point of 1000.0 [1] - The top ten weighted stocks in the CSI 300 Transportation Index include: - Beijing-Shanghai High-Speed Railway (26.28%) - SF Express (17.91%) - COSCO Shipping Holdings (14.98%) - Datong Railway (12.6%) - China Eastern Airlines (5.1%) - China Southern Airlines (4.83%) - Air China (4.4%) - Spring Airlines (4.26%) - YTO Express (3.41%) - China Merchants Energy Shipping (3.08%) [1] Group 2: Market Segmentation - The market composition of the CSI 300 Transportation Index shows that the Shanghai Stock Exchange accounts for 81.16%, while the Shenzhen Stock Exchange accounts for 18.84% [1] - The industry breakdown of the index's sample includes: - Railway Transportation (38.88%) - Express Delivery (21.33%) - Shipping (20.28%) - Air Transportation (19.51%) [2] Group 3: Sample Adjustment Mechanism - The index samples are adjusted biannually, with adjustments occurring on the next trading day following the second Friday of June and December each year [2] - Weight factors are adjusted in accordance with the sample changes, remaining fixed until the next scheduled adjustment unless a temporary adjustment is required due to changes in the CSI 300 Index [2] - Special events affecting sample companies, such as delisting, mergers, or changes in industry classification, will prompt corresponding adjustments to the CSI 300 industry index samples [2]