大盘探底回升，A500ETF易方达（159361）、沪深300ETF易方达（510310）等产品助力布局核心资产

Market Overview - A-shares experienced a rebound after hitting a low, with a total trading volume of approximately 1.1 trillion yuan in the first half of the trading day [1] - The engineering machinery, wind power equipment, and gas sectors showed gains, while the ERP concept and Huawei Euler sectors faced adjustments [1] - The Hong Kong stock market saw a pullback, with the electric power equipment and rare earth permanent magnet sectors leading the gains [1] Index Performance - By midday, the CSI A500 index and the CSI 300 index both increased by 0.1%, while the ChiNext index rose by 0.2% [1] - The Shanghai Stock Exchange Science and Technology Innovation Board 50 Index declined by 0.8%, and the Hang Seng China Enterprises Index fell by 0.6% [1] ETF Composition - The ChiNext ETF tracks the ChiNext Index, which consists of 100 stocks with high market capitalization and liquidity, with a significant proportion in strategic emerging industries, particularly electric power equipment, pharmaceuticals, and electronics, accounting for over 55% [3] - The Science and Technology Innovation Board 50 ETF tracks the SSE Science and Technology Innovation Board 50 Index, composed of 50 stocks with high market capitalization and liquidity, featuring a prominent focus on technology, with semiconductors making up over 60% and medical devices, software development, and photovoltaic equipment combined accounting for over 75% [3]