Group 1 - The core viewpoint of the news is that the China Securities Medical Index has shown significant growth, with a 1.15% increase on August 18, reaching 7643.46 points and a trading volume of 36.743 billion yuan [1] - The China Securities Medical Index has increased by 11.46% in the past month, 16.10% in the past three months, and 15.22% year-to-date [1] - The index includes companies involved in medical devices, medical services, and medical information technology, reflecting the overall performance of the medical theme listed companies [1] Group 2 - The top ten weighted companies in the China Securities Medical Index are WuXi AppTec (13.35%), Mindray Medical (8.82%), United Imaging Healthcare (7.12%), Aier Eye Hospital (6.84%), Tigermed (4.06%), Amcare (3.09%), CR Medical (3.01%), Huatai Medical (2.83%), New Industry (2.6%), and Lepu Medical (2.55%) [1] - The market share of the index holdings is 55.85% from the Shenzhen Stock Exchange and 44.15% from the Shanghai Stock Exchange [1] - The industry composition of the index holdings shows that 96.54% is in the healthcare sector, 2.07% in information technology, and 1.39% in consumer goods [1]

Group 1 - The core viewpoint of the news is that the CSI Medical Index has shown significant growth, with a 9.59% increase over the past month and a 15.22% increase over the past three months, reflecting strong performance in the medical sector [1] - The CSI Medical Index is composed of companies involved in medical devices, medical services, and medical information technology, indicating a focus on the healthcare industry [1] - The top ten weighted companies in the CSI Medical Index include WuXi AppTec (12.65%), Mindray Medical (8.91%), and United Imaging Healthcare (7.39%), highlighting the leading players in the medical sector [1] Group 2 - The CSI Medical Index has a market capitalization distribution of 55.92% from the Shenzhen Stock Exchange and 44.08% from the Shanghai Stock Exchange, indicating a balanced representation between the two exchanges [1] - The index's sample companies are predominantly in the healthcare sector, accounting for 96.49%, with a minor representation from information technology (2.09%) and consumer goods (1.42%) [1] - The index samples are adjusted biannually, with changes implemented on the next trading day following the second Friday of June and December, ensuring the index remains reflective of the current market [2]

Group 1 - The core viewpoint of the news is that the CSI Medical Index has shown a slight decline recently, reflecting the overall performance of listed companies in the medical and healthcare sector in China [1] - The CSI Medical Index closed at 6285.16 points, with a trading volume of 13.955 billion yuan, down 0.04% [1] - Over the past month, the CSI Medical Index has decreased by 8.83%, while it has seen a slight increase of 0.12% over the last three months, and a year-to-date decline of 4.13% [1] Group 2 - The CSI Medical Index includes companies involved in medical devices, medical services, and medical information technology, with a base date of December 31, 2004, set at 1000.0 points [1] - The top ten weighted companies in the CSI Medical Index are WuXi AppTec (10.39%), Mindray Medical (9.5%), Aier Eye Hospital (8.04%), United Imaging (7.08%), Aimeike (3.67%), Huatai Medical (3.62%), Kanglong Chemical (3.16%), TigerMed (3.15%), Yuyue Medical (2.82%), and New Industry (2.74%) [1] - The market share of the CSI Medical Index is 57.96% from the Shenzhen Stock Exchange and 42.04% from the Shanghai Stock Exchange [1] - The industry composition of the CSI Medical Index shows that 97.45% is in the healthcare sector, 2.28% in information technology, and 0.27% in consumer goods [1] Group 3 - The index sample is adjusted every six months, with adjustments implemented on the next trading day following the second Friday of June and December [2] - Weight factors are adjusted in accordance with the sample adjustments, which are fixed until the next scheduled adjustment unless a special situation arises [2] - Companies that are delisted or undergo mergers, acquisitions, or splits are handled according to the calculation and maintenance guidelines [2]