三大指数午后跌幅收窄，关注A500ETF易方达（159361）、沪深300ETF易方达（510310）等产品后续表现

Market Performance - On February 5, A-shares experienced a collective adjustment, with the major indices showing declines. The CSI A500 index fell by 1.2%, the CSI 300 index decreased by 0.6%, the ChiNext index dropped by 1.6%, and the STAR Market 50 index declined by 1.4% [1] - In contrast, the Hang Seng China Enterprises Index rose by 0.5% [1] Sector Performance - The sectors that saw gains included film and television, beauty care, tourism and hotels, retail, food processing and manufacturing, banking, cultural media, securities, and local stocks from Fujian [1] - Conversely, sectors that experienced declines included oil and gas, precious metals, photovoltaic equipment, non-ferrous metals, cultivated diamonds, power grid equipment, coal mining and processing, and phosphorus chemical industries [1] Index Composition - The STAR Market 50 index consists of 50 stocks with large market capitalization and good liquidity, prominently featuring "hard technology" leaders, with over 65% in semiconductors and a combined 80% in medical devices, software development, and photovoltaic equipment [6] - The Hang Seng China Enterprises Index includes 50 large-cap, actively traded stocks from mainland China listed in Hong Kong, covering a wide range of industries, with nearly 85% in consumer discretionary, information technology, finance, and energy sectors [6]