欧科亿跌2.03%，成交额2602.12万元，主力资金净流出170.93万元

Group 1 - The core viewpoint of the news is that 欧科亿's stock has experienced fluctuations, with a recent decline of 2.03% and a year-to-date increase of 58.93% [1] - As of November 20, the stock price is reported at 28.45 yuan per share, with a market capitalization of 4.517 billion yuan [1] - The company has seen a net outflow of main funds amounting to 1.7093 million yuan, with significant selling pressure [1] Group 2 - For the period from January to September 2025, 欧科亿 achieved operating revenue of 1.023 billion yuan, reflecting a year-on-year growth of 14.34% [2] - The net profit attributable to shareholders for the same period was 51.126 million yuan, which represents a year-on-year decrease of 43.09% [2] - The number of shareholders increased by 13.48% to 7,667, while the average circulating shares per person decreased by 11.88% to 20,709 shares [2] Group 3 - Since its A-share listing, 欧科亿 has distributed a total of 261 million yuan in dividends, with 158 million yuan distributed over the past three years [3]