Jin Rong Jie·2025-07-18 07:39Group 1 - The Shanghai Composite Index opened high and rose, with the CSI 300 Transportation Infrastructure Index reported at 1279.25 points [1] - The CSI 300 Transportation Infrastructure Index has decreased by 2.03% over the past month, 4.55% over the past three months, and 9.41% year-to-date [2] - The CSI 300 Index categorizes its 300 sample stocks into 11 primary industries, 35 secondary industries, over 90 tertiary industries, and more than 200 quaternary industries, with a base date of December 31, 2004, set at 1000.0 points [2] Group 2 - The CSI 300 Transportation Infrastructure Index has a market share distribution of 72.25% from the Shanghai Stock Exchange and 27.75% from the Shenzhen Stock Exchange [2] - Within the holdings of the CSI 300 Transportation Infrastructure Index, the airport sector accounts for 45.67%, the highway sector for 36.32%, and the port sector for 18.01% [2] - The index sample is adjusted biannually, with adjustments implemented on the next trading day following the second Friday of June and December [3]