突变！多只强势股跳水！003018，“天地板”

Market Overview - On December 3, A-shares declined across the board, with the ChiNext Index dropping over 1% and the Hong Kong stock market also showing weakness, both major indices falling more than 1% [1] - The Shanghai Composite Index closed down 0.51% at 3878 points, the Shenzhen Component Index fell 0.78%, and the ChiNext Index decreased by 1.12% [1] - The total trading volume in the Shanghai and Shenzhen markets reached 168.37 billion yuan, an increase of 76.4 billion yuan from the previous day [1] Active Sectors - The AI application concept saw a pullback, with stocks like Fushi Holdings dropping over 12% and Inspur Software hitting the daily limit down [1] - Conversely, the non-ferrous metals and coal sectors experienced gains, with stocks such as Dayou Energy, Antai Group, and New Dazhou A hitting the daily limit up [1] - The cultivated diamond concept surged, with Sifangda rising over 15% and Huifeng Diamond increasing by more than 10% [1] - The anti-influenza concept was notably active, with Haiwang Biological achieving a six-day limit up, and stocks like Jindike and Yue Wannianqing rising over 15% [1][3] Influenza-related Stocks - The recent rise in influenza cases has led to increased market attention and demand for flu prevention and treatment products [3] - Haiwang Biological's stock hit the limit up, marking its sixth consecutive day of gains, while *ST Changyao also reached a 20% limit up [3] - The China CDC reported a nearly 45% positivity rate for flu-like cases, indicating a significant rise in influenza activity across the country [3] - Institutions suggest focusing on investment opportunities in flu vaccines, virus detection, cold medicines, and specific antiviral drugs due to the rising flu epidemic [3] Stock Volatility - Several strong stocks experienced significant declines, such as Saiwei Electronics, which fell by 19.56% after a previous surge of approximately 118% over the last ten trading days [6] - Hezhong China and Jinfu Technology also faced sharp declines, with the latter experiencing a "limit up and down" scenario after a series of consecutive gains [11][13] - Companies like Hainan Haiyao and Dajia Weikang reported strong sales growth in flu-related medications, indicating a robust market response to the rising flu cases [4]