A股午评：创业板指涨1.74% 人脑工程概念等涨幅居前

Core Viewpoint - The A-share market showed positive momentum with the ChiNext index rising by 1.74%, driven by strong performances in sectors such as brain engineering and defense industry [1] Market Performance - The three major indices opened lower but experienced upward movement, with the Shanghai Composite Index increasing by 0.38%, the Shenzhen Component Index rising by 1.03%, and the ChiNext Index gaining 1.74% [1] - The total trading volume in the market exceeded 800 billion yuan, with approximately 3,800 stocks advancing [1] Sector Highlights - The brain engineering concept saw significant gains, with Aipeng Medical hitting a 20% limit up [1] - The copper cable high-speed connection concept also surged, with Woer Nuclear Materials reaching the limit up [1] - The defense and military industry continued to strengthen, with AVIC Chengfei rising nearly 12% [1] - Other sectors that performed well included insurance, AI applications, heat pump concepts, photovoltaic concepts, and ST stocks [1] Declining Sectors - The PEEK materials concept experienced a sharp decline, with Zhongxin Fluorine Materials hitting the limit down [1] - Other sectors that faced declines included seed industry and fertilizer concepts [1]