沪指低位震荡，关注A500ETF易方达(159361)、沪深300ETF易方达(510310)等产品投资机会

Market Performance - The A-share market indices continued to adjust in the morning session, with the Shanghai Composite Index experiencing a decline of 0.56% [1] - The CSI 500 Index fell by 0.4%, the CSI 300 Index decreased by 0.2%, and the ChiNext Index dropped by 0.4% [1] - The STAR Market 50 Index, however, saw an increase of 0.9% [1] - The Hang Seng China Enterprises Index declined by 1.3% [1] Sector Performance - The AI application sector showed an upward trend, while the battery, coal, and chemical sectors experienced adjustments [1] - In the Hong Kong market, the pharmaceutical sector initially rose but then retreated, and the technology sector continued to fluctuate [1] Index Composition - The ChiNext Index consists of 100 stocks with high market capitalization and liquidity, with a significant proportion from strategic emerging industries, particularly power equipment, communication, and electronics, which together account for nearly 60% [3] - The STAR Market 50 Index is composed of 50 stocks with high market capitalization and liquidity, prominently featuring technology leaders, with semiconductors making up over 65% and medical devices, software development, and photovoltaic equipment accounting for nearly 80% combined [3]