Market Overview - The three major indices showed mixed performance, with the ChiNext and Sci-Tech 50 indices dropping over 1%. The total trading volume in the two markets fell below 2 trillion yuan for the first time in 31 trading days, decreasing by 121.3 billion yuan compared to the previous trading day, with a net outflow of 52.8 billion yuan from domestic investors. More than 3,200 stocks declined, with a median drop of -0.31% [2]. Sector Performance - The chemical sector has shown strength recently, with Ji Hua Group achieving a 5-day streak of gains, and stocks like Taihe New Materials, Baichuan Shares, Vinegar Chemical Shares, and Hualitai hitting the daily limit. The fiberglass concept also surged, with Honghe Technology, Shandong Fiberglass, International Composites, and China Jushi reaching the daily limit. The non-ferrous metal sector was active, led by tungsten concepts, with Xianglu Tungsten Industry achieving a 4-day streak of gains and Zhangyuan Tungsten Industry hitting the daily limit [2][3]. Market Dynamics - The recent rally in sectors related to non-ferrous metals and chemicals is attributed to price increase logic. Stocks like Zhongtung High-tech and International Composites are significant players, while many of the other rising stocks are small-cap. The "Douyin SD concept" that led the market yesterday saw a significant number of stocks drop today, indicating a typical quantitative trading operation where gains were quickly realized [3]. Investment Sentiment - The market is currently experiencing a rotation among sectors, and it is suggested that the main themes will only become clearer after the Spring Festival. The large-cap technology stocks, such as Zhongji Xuchuang and Xinyi Sheng, also experienced significant pullbacks [3].