11月3日，正帆科技跌3.41%，截至发稿，报31.73元/股，成交6.89亿元，换手率7.40%，总市值92.94亿 元。正帆科技股价已经连续4天下跌，区间累计跌幅20.24%。 资料显示，上海正帆科技股份有限公司位于上海市闵行区春永路55号2幢，成立日期2009年10月10日， 上市日期2020年8月20日，公司主营业务涉及气体化学品供应系统的设计、生产、安装及配套服务;高纯 特种气体的生产、销售;洁净厂房配套系统的设计、施工。主营业务收入构成为：电子工艺设备 63.06%，核心零组件12.82%，气体和先进材料9.92%，MRO业务8.24%，生物制药设备5.91%，其他业 务0.03%，其他(补充)0.02%。 从正帆科技十大流通股东角度 数据显示，东方基金旗下1只基金位居正帆科技十大流通股东。东方人工智能主题混合A（005844）三 季度增持6.57万股，持有股数921.38万股，占流通股的比例为3.15%。根据测算，今日浮亏损失约 1031.95万元。连续4天下跌期间浮亏损失7417.14万元。 东方人工智能主题混合A（005844）成立日期2018年6月7日，最新规模6.02亿。今年以来收益42 ...

Group 1 - The core point of the news is that Zhengfan Technology's stock price has dropped by 5.05%, currently trading at 46.28 CNY per share, with a total market capitalization of 13.557 billion CNY [1] - Zhengfan Technology, established on October 10, 2009, specializes in the design, production, installation, and supporting services of gas chemical supply systems, as well as the production and sales of high-purity specialty gases [1] - The company's main business revenue composition includes: electronic process equipment 63.06%, core components 12.82%, gases 9.92%, MRO business 8.24%, biopharmaceutical equipment 5.91%, and other businesses 0.05% [1] Group 2 - According to data, Guotou Ruijin Fund holds a significant position in Zhengfan Technology, with the Guotou Ruijin SSE Sci-Tech Innovation Board 200 Index Fund A (023518) holding 48,500 shares, accounting for 0.98% of the fund's net value [2] - The fund has experienced an estimated floating loss of approximately 119,300 CNY today [2] - The fund was established on March 18, 2025, with a current scale of 70.0747 million CNY and has achieved a return of 32.81% since inception [2] Group 3 - The fund manager Zhao Jian has a tenure of 12 years and 22 days, with a total asset scale of 3.848 billion CNY, achieving the best fund return of 172.91% during his tenure [3] - The other fund manager, Qian Han, has a tenure of 2 years and 62 days, managing assets of 936 million CNY, with the best fund return of 37.85% during his tenure [3]