A股午评：创业板指跌超1%，医药、AI应用概念股逆势走强

Core Insights - The A-share market experienced a downward adjustment in the morning session, with all three major indices declining. The Shanghai Composite Index fell by 0.63%, the Shenzhen Component Index by 0.62%, and the ChiNext Index by 1.49% [1][3] - Despite the overall market decline, certain sectors such as pharmaceuticals and AI applications showed resilience, with significant gains in specific stocks [1][3] Sector Performance - The pharmaceutical sector performed well, with notable stocks like Sanofi China and Lianhuan Pharmaceutical hitting the daily limit up [1][3] - The lithium battery sector was active, with Tianji Co. achieving two consecutive limit-ups and several other stocks also reaching the daily limit [1][3] - The Fujian sector continued to strengthen, with Pingtan Development achieving eight limit-ups in eleven days [1][3] - AI application concept stocks saw a rise, with Rongxin Culture and Fushi Holdings both hitting the daily limit [1][3] - Conversely, the computing hardware sector faced collective declines, particularly among the "Yizhongtian" optical module giants [1][3] - The storage chip sector showed weakness, with Jiangbolong dropping over 8% [1][3] - The controlled nuclear fusion concept stocks also fell, with China Nuclear Engineering hitting the daily limit down [1][3] Summary of Market Activity - The total trading volume in the Shanghai and Shenzhen markets reached 1.56 trillion yuan, an increase of 27.4 billion yuan compared to the previous trading day [1][3] - Over 3,800 stocks in the market experienced gains, indicating a rapid rotation of market hotspots [1][3]