国产AI芯片股集体下跌

Group 1 - The core viewpoint is that domestic AI chip companies, particularly Cambricon, experienced significant stock price declines, with Cambricon's market value falling below 460 billion yuan [1] - Cambricon's stock price dropped over 13%, closing at 1,083.34 yuan, reflecting a decrease of 12.77% [2] - Other AI chip companies also faced declines, with Moer Technology down over 5% to 542.50 yuan, Huagong Information down over 3% to 247.40 yuan, and Muxi Co., Ltd. down 6% to 501.18 yuan [1][2]