三大指数涨跌不一，创业板指半日跌0.91%，化工板块反复走强

Market Overview - The three major indices showed mixed performance, with the Shanghai Composite Index rising by 0.22% to 4137.55, while the Shenzhen Component Index fell by 0.07% to 14200.38, and the ChiNext Index decreased by 0.91% to 3290.41 [1][2] - The total trading volume in the Shanghai and Shenzhen markets reached 1.3 trillion, a decrease of 949 billion compared to the previous trading day [1][6] - Over 2700 stocks in the market experienced an increase [1] Sector Performance - The chemical sector showed strong performance, with companies like Jihua Group achieving a five-day streak of gains, and stocks such as Sanfangxiang, Baichuan Co., and Hualitai hitting the daily limit [2] - The fiberglass concept saw rapid gains, with stocks like Shandong Fiberglass, International Composites, and China Jushi reaching the daily limit [2] - The non-ferrous metals sector was active, particularly the tungsten concept, with Xianglu Tungsten achieving two gains in four days and Zhangyuan Tungsten hitting the daily limit [2] - The computing power leasing concept also surged, with companies like Nanxing Co. and Dawi Technology reaching the daily limit [2] Decline in Specific Sectors - The film and cinema sector faced significant declines, with Hengdian Film falling to the daily limit, and other companies like Huayi Brothers, Huace Film, and China Film experiencing substantial drops [3]