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]

从指数持仓来看，中证医疗指数十大权重分别为：药明康德（12.65%）、迈瑞医疗（8.91%）、联影医 疗（7.39%）、爱尔眼科（6.86%）、泰格医药（3.94%）、爱美客（3.22%）、康龙化成（2.92%）、惠 泰医疗（2.88%）、乐普医疗（2.71%）、新产业（2.57%）。 从中证医疗指数持仓的市场板块来看，深圳证券交易所占比55.92%、上海证券交易所占比44.08%。 金融界8月13日消息，上证指数高开高走，中证医疗指数 (中证医疗，399989)上涨1.74%，报7587.72 点，成交额377.23亿元。 数据统计显示，中证医疗指数近一个月上涨9.59%，近三个月上涨15.22%，年至今上涨13.72%。 据了解，中证医疗指数选取业务涉及医疗器械、医疗服务、医疗信息化等医疗主题的医药卫生行业上市 公司证券作为指数样本，以反映医疗主题上市公司证券的整体表现。该指数以2004年12月31日为基日， 以1000.0点为基点。 从中证医疗指数持仓样本的行业来看，医药卫生占比96.49%、信息技术占比2.09%、主要消费占比 1.42%。 资料显示，指数样本每半年调整一次，样本调整实施时间分别为每年 ...

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]