A股半导体股集体回落，寒武纪、长光华芯跌超6%

Group 1 - The semiconductor stocks in the A-share market experienced a collective decline, with significant drops in several companies [1] - Yuanjie Technology saw a decrease of over 14.62%, with a total market capitalization of 27.4 billion [2] - Dongxin Co. fell by 12.16%, reaching a market value of 38.5 billion, while Chengdu Huamei dropped by 10.05% with a market cap of 29.9 billion [2] Group 2 - Other notable declines included Cambricon Technologies down by 6.86% with a market cap of 499.3 billion, and Changguang Huaxin down by 6.16% with a market value of 12.2 billion [2] - Honghua Company and Liyang Chip both experienced declines of over 5%, with market caps of 118.4 billion and 5.244 billion respectively [2] - The overall trend indicates a challenging environment for semiconductor stocks in the A-share market, with many companies showing significant year-to-date gains despite recent declines [1][2]