正邦科技大跌5.06%，成交额2.13亿元，主力资金净流出2871.68万元

Group 1 - The core viewpoint of the news is that Zhengbang Technology's stock has experienced fluctuations, with a recent decline of 5.06% and a year-to-date increase of 15.75% [1] - As of December 29, the stock price is reported at 3.38 yuan per share, with a total market capitalization of 31.266 billion yuan [1] - The company has seen a net outflow of main funds amounting to 28.7168 million yuan, with significant selling pressure observed [1] Group 2 - Zhengbang Technology operates primarily in the pig farming sector, with its main business revenue composition being 59.63% from pig farming, 38.31% from complete feed, and 0.92% from veterinary medicine [1] - As of November 20, the number of shareholders is reported at 156,200, a decrease of 5.45% from the previous period, while the average circulating shares per person increased by 6.76% to 46,233 shares [2] - For the period from January to September 2025, the company achieved a revenue of 10.658 billion yuan, reflecting a year-on-year growth of 82.58%, but the net profit attributable to the parent company decreased by 97.25% to 8.2656 million yuan [2] Group 3 - Since its A-share listing, Zhengbang Technology has distributed a total of 2.864 billion yuan in dividends, with no dividends paid in the last three years [3]