品茗科技跌2.20%，成交额1843.02万元，主力资金净流出48.75万元

Group 1 - The core viewpoint of the news is that Pinming Technology's stock has experienced significant fluctuations, with a year-to-date increase of 481.74% and a recent decline of 2.20% [1] - As of November 21, the stock price is reported at 138.68 yuan per share, with a total market capitalization of 10.934 billion yuan [1] - The company has seen a net outflow of 487,500 yuan in principal funds, while large orders accounted for 37.39% of total buying and 59.71% of total selling [1] Group 2 - Pinming Technology, established on July 11, 2011, focuses on "digital construction" technology and solutions for the construction industry, providing products from the preparation phase to project completion [2] - The company's revenue composition includes 57.44% from information software products and 42.56% from smart construction site products [2] - As of September 30, the number of shareholders increased by 39.30% to 6,564, while the average circulating shares per person decreased by 28.21% [2] Group 3 - Since its A-share listing, Pinming Technology has distributed a total of 152 million yuan in dividends, with 75.99 million yuan distributed over the past three years [3]