瑞芯微涨2.08%，成交额6.88亿元，主力资金净流出4335.57万元

Group 1 - The core viewpoint of the news is that 瑞芯微 has shown a positive stock performance with a year-to-date increase of 7.33% and a recent rise of 2.08% in intraday trading, indicating strong market interest and activity [1][2] - As of January 12, 瑞芯微's stock price reached 191.34 yuan per share, with a total market capitalization of 805.44 billion yuan and a trading volume of 6.88 billion yuan [1] - The company reported a significant increase in revenue and net profit for the period from January to September 2025, with revenue of 3.141 billion yuan, up 45.46% year-on-year, and a net profit of 780 million yuan, up 121.65% year-on-year [2] Group 2 - 瑞芯微's main business involves the design, development, and sales of large-scale integrated circuits, with the majority of revenue coming from smart application processor chips (90.25%) [2] - The company has a diverse shareholder base, with a total of 87,500 shareholders as of September 30, 2025, reflecting a 34.79% increase from the previous period [2] - In terms of dividends, 瑞芯微 has distributed a total of 1.274 billion yuan since its A-share listing, with 566 million yuan distributed over the past three years [3]