正川股份收盘上涨1.50%，滚动市盈率61.90倍，总市值26.69亿元

Group 1 - The core viewpoint of the articles highlights the financial performance and market position of Zhengchuan Co., which operates in the pharmaceutical packaging industry [1] - As of May 29, Zhengchuan Co. closed at 17.65 yuan, with a 1.50% increase, resulting in a rolling PE ratio of 61.90 times and a total market value of 2.669 billion yuan [1] - The average PE ratio for the medical device industry is 49.64 times, with a median of 36.36 times, placing Zhengchuan Co. at the 95th position in the industry ranking [1][2] Group 2 - As of the first quarter of 2025, there are 2 institutional investors holding shares in Zhengchuan Co., with a total holding of 59.4013 million shares valued at 1.029 billion yuan [1] - The main business of Zhengchuan Co. includes the research, production, and sales of pharmaceutical packaging materials, specifically borosilicate glass tubes and sodium-calcium glass tubes [1] - The latest financial report for the first quarter of 2025 shows that the company achieved an operating income of 162 million yuan, a year-on-year decrease of 34.24%, and a net profit of 10.9141 million yuan, down 48.15% year-on-year, with a gross profit margin of 21.61% [1]