贝因美涨2.10%，成交额2.58亿元，主力资金净流入557.75万元

Group 1 - The core viewpoint of the news is that Beiyinmei's stock has shown significant fluctuations, with a year-to-date increase of 50.12% and a recent rise of 2.10% on December 19, reaching a price of 6.32 yuan per share [1] - As of September 30, Beiyinmei reported a revenue of 2.033 billion yuan for the first nine months of 2025, a year-on-year decrease of 2.59%, while the net profit attributable to shareholders increased by 48.07% to 106 million yuan [2] - The company has a market capitalization of 6.826 billion yuan and has seen a net inflow of main funds amounting to 5.5775 million yuan on December 19 [1] Group 2 - Beiyinmei's main business revenue composition includes 89.20% from milk powder, 4.69% from other supplements, 3.54% from rice flour, 1.71% from supplies, and 0.86% from other categories [1] - The company has not distributed any dividends in the last three years, with a total payout of 9.61 billion yuan since its A-share listing [3] - As of September 30, the number of shareholders increased by 3.24% to 147,900, with an average of 7,302 circulating shares per person, a decrease of 3.14% [2]