Hengrui Pharma(600276) 金融界·2025-05-12 07:33Group 1 - The Shanghai Composite Index opened high and the CSI 300 Pharmaceutical and Biotechnology Index reported 7624.71 points [1] - The CSI 300 Pharmaceutical and Biotechnology Index has increased by 4.46% in the past month, 3.56% in the past three months, and 2.43% year-to-date [1] - The index is designed to reflect the overall performance of different industry companies within the CSI 300 Index, categorized into 11 primary industries, 35 secondary industries, over 90 tertiary industries, and more than 200 quaternary industries [1] Group 2 - The top ten holdings of the CSI 300 Pharmaceutical and Biotechnology Index are: Heng Rui Medicine (25.5%), WuXi AppTec (15.98%), Pian Zai Huang (6.77%), Yunnan Baiyao (5.51%), Kelun Pharmaceutical (4.73%), New Horizon (3.69%), East China Pharmaceutical (3.68%), Shanghai Raist (3.39%), Changchun High-tech (3.33%), and Fosun Pharma (3.23%) [1] - The market segment of the CSI 300 Pharmaceutical and Biotechnology Index shows that the Shanghai Stock Exchange accounts for 63.75% and the Shenzhen Stock Exchange accounts for 36.25% [2] - In terms of industry composition, chemical drugs account for 43.27%, pharmaceutical and biotechnology services for 21.11%, traditional Chinese medicine for 19.35%, and biological drugs for 16.27% [2] Group 3 - The index samples are adjusted every six months, with adjustments implemented on the next trading day after the second Friday of June and December each year [2] - Weight factors are adjusted along with the periodic sample adjustments, which are fixed until the next scheduled adjustment unless a temporary adjustment is required [2] - Special events affecting sample companies may lead to changes in industry classification, and companies that are delisted will be removed from the index [2]