龙虎榜复盘 | AI、流感概念携手走强，机构呈现整体净卖出

Group 1: Institutional Trading Insights - A total of 36 stocks were listed on the institutional trading leaderboard, with 14 stocks experiencing net buying and 22 stocks facing net selling [1] - The top three stocks with the highest net buying by institutions were: Changguang Huaxin (¥232 million), China International Marine Containers (¥187 million), and Zhonghuan Hailu (¥47.07 million) [1] Group 2: Changguang Huaxin Developments - Two institutions net bought ¥232 million in Changguang Huaxin, which has achieved mass production of its 100G EML and is in the sample delivery phase for its 200G EML [2] - The company has also reached mass production and shipment levels for its 100G VCSEL, 100mW CW DFB, and 70mW CWDM4 DFB chips [2] Group 3: Flu and Pharmaceutical Responses - The flu is currently on the rise in China, with many provinces reporting flu activity at epidemic levels, as indicated by the latest China Influenza Monitoring Weekly Report [3] - Beijing University Pharmaceutical's oseltamivir phosphate dry suspension has been approved for the prevention and treatment of both type A and type B influenza [4] - Guangji Pharmaceutical's pediatric acetaminophen and chlorpheniramine granules are suitable for alleviating symptoms of common colds and influenza in children [5] Group 4: AI and Technology Integration - Sanwei Tiandi has disclosed that its AI intelligent agent Sunwaylink has been deeply integrated with core products and has achieved order fulfillment, aligning with the regulatory needs post-Hainan's customs closure [6] - The company has accumulated over ¥50 million in AI-related contract orders as of the first half of the year [6] - Shiji Information maintains a long-term strategic partnership with Alibaba in hotel information systems, cloud computing, and AI, enhancing development efficiency and system intelligence through AI code generation tools [7]