智飞生物涨2.02%，成交额9515.29万元，主力资金净流出403.16万元

Core Viewpoint - The stock of Zhifei Biological has experienced fluctuations, with a year-to-date decline of 15.44% and a recent increase in trading activity, indicating potential investor interest despite recent financial challenges [1][2]. Company Overview - Zhifei Biological, established on July 20, 1995, and listed on September 28, 2010, is located in Chongqing and specializes in the research, production, and sales of vaccines and biological products [1]. - The company's revenue composition includes 88.84% from agency products, 10.15% from self-developed products, and 1.00% from other sources [1]. Financial Performance - For the first half of 2025, Zhifei Biological reported a revenue of 4.919 billion yuan, a significant year-on-year decrease of 73.06%, and a net profit attributable to shareholders of -597 million yuan, reflecting a 126.72% decline [2]. - Cumulatively, the company has distributed 7.318 billion yuan in dividends since its A-share listing, with 3.194 billion yuan distributed over the past three years [3]. Shareholder Structure - As of June 30, 2025, Zhifei Biological had 139,500 shareholders, with an average of 10,139 circulating shares per person, showing a slight increase of 0.28% [2]. - The top ten circulating shareholders include significant institutional investors, with Hong Kong Central Clearing Limited holding 36.3496 million shares, a decrease of 10.5904 million shares from the previous period [3].