A股午评：创业板指半日跌0.84% 海洋经济概念股集体上扬

Core Viewpoint - A-shares experienced a collective decline in the morning session, with the ChiNext index dropping by 0.84%, while marine economy concept stocks surged collectively [1] Market Performance - The three major A-share indices all fell in the morning, with the Shanghai Composite Index down by 0.04%, the Shenzhen Component Index down by 0.42%, and the ChiNext Index down by 0.84% [1] - The North Stock 50 index decreased by 0.94% [1] - The total trading volume in the Shanghai and Shenzhen markets was approximately 849.716 billion yuan, a decrease of about 110.904 billion yuan compared to the previous trading day [1] - Out of the total market, 1,939 stocks rose while 3,248 stocks fell, with 48 stocks hitting the daily limit up and 5 stocks hitting the daily limit down [1] Sector Performance - Marine economy concept stocks saw significant gains, with over 10 stocks, including Jili Rigging, hitting the daily limit up [1] - Photovoltaic concept stocks experienced a rebound, with stocks like Yamaton hitting the daily limit up [1] - Sugar substitute concept stocks were active, with Baolingbao hitting the daily limit up [1] - Chip concept stocks collectively adjusted, with multiple stocks, including Taiji Co., falling over 5% [1] - The sectors with the highest gains included marine economy, sugar substitutes, photovoltaic, and non-ferrous metals, while the sectors with the largest declines included chips, Huawei HiSilicon, CPO, and brain-computer interfaces [1]