寒武纪-U盘中重挫

Group 1 - The A-share market experienced overall low-level fluctuations on February 3, with most major indices and sectors rising, but individual stock performance showed divergence [2][3] - The stock of Cambrian Technology (寒武纪-U) saw a sudden drop, with a decline exceeding 14% at one point during the trading session, closing down 12.88% at 1082.09 yuan per share, resulting in a total market capitalization of 456.3 billion yuan [10][11] - The market saw over 4,400 stocks in the green, with the major indices fluctuating throughout the morning session, ultimately closing with the Shanghai Composite Index up 0.38%, the Shenzhen Component Index up 0.93%, and the ChiNext Index up 0.76% [3][4] Group 2 - The defense and military industry sector led the gains, with an intraday increase of over 3%, while sectors such as banking and oil & gas saw declines [10] - Cambrian Technology's significant drop in stock price was notable amidst a broader market context where many stocks were still experiencing gains [10][11] - The new stock, Shimon Holdings (世盟股份), listed today and saw its price rise by as much as 150% during the session, focusing on providing integrated supply chain logistics solutions for multinational manufacturing enterprises [18]