CNCEC(SH:601117) Jin Rong Jie·2025-05-12 07:32Group 1 - The Shanghai Composite Index opened high and the CSI 300 Construction Engineering Index reported 3441.00 points [1] - The CSI 300 Construction Engineering Index has increased by 0.08% in the last month, decreased by 1.92% in the last three months, and has declined by 8.58% 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 for comprehensive performance analysis [2] Group 2 - The CSI 300 Construction Engineering Index is entirely composed of stocks from the Shanghai Stock Exchange, with a 100% allocation [2] - Within the holdings of the CSI 300 Construction Engineering Index, infrastructure construction accounts for 57.18%, housing construction for 35.63%, and specialized engineering for 7.19% [2] - The index samples are adjusted biannually, with adjustments implemented on the next trading day following the second Friday of June and December [3]