1. DeepSeek在留言区的一句话，引爆了8月22日A股半导体和算力行情，以寒武纪、海光信息、中科曙 光等为首的龙头个股接连涨停。其中寒武纪股价接连突破1100元和1200元两大关口，最终20CM涨停封 板，收盘价达1243.20元，总市值站上5200亿元。 2.炬芯科技公布2025年半年度报告显示，该公司上半年实现营业收入4.49亿元，同比增长60.12%；归母 净利润0.91亿元，同比增长123.19%；扣非净利润0.86亿元，同比增长269.08%。对于营收变化，炬芯科 技在半年报中表示，2025年上半年，该公司推进端侧产品AI化转型。端侧AI音频芯片方面，该公司基 于第一代存内计算技术的端侧AI音频芯片已成功进入多家头部品牌立项阶段，其中面向低延时私有无 线音频领域的客户终端产品率先实现量产，带动新品起量。同时，炬芯科技端侧AI处理器芯片已落地 头部音频品牌的高端音箱、Party音箱等产品，销售收入实现数倍增长；低延迟高音质无线音频产品市 场需求爆发，销售额攀升；蓝牙音箱SoC芯片系列在头部音频品牌渗透率上升。 3. 盛科通信2025年上半年实现营业收入5.08亿元，同比下降4.56%；归母净利润 ...

以下是第一财经对一些重要公告的汇总，供投资者参考。 【品大事】 鼎胜新材： 拟通过出售三门峡铝业0.57%股权 持有焦作万方股份 中国中铁：尖扎黄河特大桥施工事故原因正在调查中 中国中铁(601390)公告，8月22日3时10分左右，公司全资子公司中铁大桥局集团有限公司施工的川青铁 路青海段尖扎黄河特大桥，辅助钢梁架设的吊索塔架前端扣索突然崩断，截至目前造成12人遇难、4人 失联。目前，现场应急和搜救等相关工作正有序开展，事故原因正在调查之中。公司对此次事故不幸遇 难者表示沉痛哀悼，并对遇难者家属表达歉意。公司将深刻汲取教训，落实好企业主体责任，妥善处理 相关后续工作。尖扎黄河特大桥全长1596.2米，合同额约4.36亿元。此次事故不会对公司生产经营及业 绩产生重大影响。 格林美：拟发行H股并在香港联交所主板挂牌上市 格林美(002340)公告，公司拟发行H股股票并在香港联交所主板挂牌上市。 景旺电子：拟50亿元投建珠海金湾基地扩产项目 聚焦AI算力等高增长领域 景旺电子(603228)公告，公司拟投资建设珠海金湾基地扩产项目，预计总投资50亿元。经初步测算，此 次扩产投资项目税后投资回收期约为7.5年（含建 ...

Group 1: A-Share Market Performance - In Q1 2025, 5,379 A-share companies reported stable performance, with 4,071 companies profitable, representing nearly 80% [2] - 2,125 companies achieved year-on-year net profit growth, while 821 companies turned losses into profits or reduced losses [2] - The growth is driven by domestic demand and innovation, with consumer companies benefiting from policies aimed at expanding domestic demand [2] Group 2: Media and Entertainment Sector - Media companies like Light Media and Happiness Blue Sea reported strong Q1 results, with Light Media achieving revenue of 2.975 billion yuan, up 177.87%, and net profit of 2.016 billion yuan, up 374.79% [3] - The domestic tourism market is thriving, with companies like Jiuhua Tourism reporting revenue of 235 million yuan, up 30.13%, and net profit of 68.66 million yuan, up 31.83% [3] Group 3: Aviation and Electronics Sector - Huaxia Airlines reported a revenue of 1.774 billion yuan, up 9.78%, and net profit of 81.98 million yuan, up 232.31% [4] - BOE Technology Group achieved a revenue of 50.599 billion yuan, up 10.27%, and net profit of 1.614 billion yuan, up 64.06%, driven by the "old-for-new" policy [4] Group 4: Technology Sector - Companies like Shenghong Technology and Juchip reported significant growth, with Shenghong achieving revenue of 4.312 billion yuan, up 80.31%, and net profit of 921 million yuan, up 339.22% [6] - Juchip reported revenue of 192 million yuan, up 62.03%, and net profit of 41.45 million yuan, up 385.67% [6] Group 5: Automotive and Pharmaceutical Sector - BYD reported Q1 revenue of 170.36 billion yuan, up 36.35%, and net profit of 9.155 billion yuan, up 100.38%, driven by strong sales in the new energy vehicle sector [7] - Luo Xin Pharmaceutical's net profit grew by 115.41%, attributed to the successful commercialization of innovative drugs [7]