中证专精特新100指数下跌0.05%，前十大权重包含天孚通信等

Core Viewpoint - The China Securities Index for specialized and innovative companies (中证专精特新100指数) shows a slight decline of 0.05% on July 22, with a trading volume of 48.175 billion yuan, despite a positive performance over the past month, three months, and year-to-date [1]. Group 1: Index Performance - The 中证专精特新100指数 has increased by 7.33% over the past month, 3.48% over the last three months, and 7.19% year-to-date [1]. - The index is composed of 100 larger listed companies selected from specialized and innovative "little giant" enterprises, reflecting the overall performance of representative specialized and innovative listed companies [1]. Group 2: Index Holdings - The top ten weighted companies in the 中证专精特新100指数 include 海光信息 (9.58%), 天孚通信 (3.49%), 瑞芯微 (2.77%), 圣邦股份 (2.54%), 爱美客 (2.34%), 华海清科 (2.27%), 惠城环保 (2.16%), 惠泰医疗 (2.09%), 华大九天 (1.96%), and 拓荆科技 (1.92%) [1]. - The market segments represented in the index holdings are primarily from the Shanghai Stock Exchange (51.10%), followed by the Shenzhen Stock Exchange (44.89%) and the Beijing Stock Exchange (4.01%) [1]. Group 3: Industry Composition - The industry composition of the index holdings shows that Information Technology accounts for 55.67%, followed by Industrial (20.93%), Pharmaceutical and Health (10.29%), Communication Services (6.71%), Materials (4.96%), and Consumer Discretionary (1.45%) [2]. - The index samples are adjusted biannually, with adjustments implemented on the next trading day following the second Friday of June and December each year [2].