股票行情快报：天臣医疗（688013）8月18日主力资金净卖出735.55万元

Core Insights - Tianchen Medical (688013) closed at 39.95 yuan on August 18, 2025, with a 2.33% increase and a trading volume of 25,600 hands, resulting in a transaction amount of 102 million yuan [1][2]. Fund Flow Analysis - On August 18, 2025, the net outflow of main funds was 7.36 million yuan, accounting for 7.21% of the total transaction amount, while retail funds saw a net inflow of 0.40 million yuan, representing 0.4% of the total transaction amount [1][2]. - Over the past five days, the fund flow data shows fluctuations, with notable net inflows and outflows from main and retail funds on different days [2]. Company Performance Metrics - Tianchen Medical's total market value is 3.242 billion yuan, with a net asset of 572 million yuan and a net profit of 13.19 million yuan [3]. - The company reported a revenue of 65.85 million yuan in Q1 2025, reflecting a year-on-year increase of 9.34%, and a net profit increase of 16.16% [3]. - Key financial ratios include a price-to-earnings ratio of 61.47, a price-to-book ratio of 6.1, a gross margin of 58.46%, and a net margin of 20.03% [3].