明德生物收盘下跌1.91%，滚动市盈率113.85倍，总市值44.18亿元

Group 1 - The core viewpoint of the articles indicates that Mingde Biological's stock is currently underperforming with a closing price of 19.0 yuan, down 1.91%, and a rolling PE ratio of 113.85 times, significantly higher than the industry average [1][2] - The total market capitalization of Mingde Biological is reported at 4.418 billion yuan, ranking 108th in the medical device industry based on PE ratio [1][2] - The company experienced a net outflow of 4.511 million yuan in major funds on May 22, with a total outflow of 11.4719 million yuan over the past five days, indicating a negative trend in investor sentiment [1] Group 2 - Mingde Biological specializes in the research, production, sales, and service of in vitro diagnostic reagents and instruments, as well as providing information solutions for critical care and third-party medical testing services [1] - The latest financial report for Q1 2025 shows that the company achieved operating revenue of 69.9603 million yuan, a year-on-year increase of 14.76%, but reported a net loss of approximately 3.662988 million yuan, a year-on-year decline of 111.43%, with a gross profit margin of 16.37% [1]