九州一轨收盘上涨1.73%，滚动市盈率171.91倍，总市值20.30亿元

Group 1 - The core viewpoint of the articles highlights the performance and valuation of Jiuzhou Yigui, which has a current PE ratio of 171.91, marking a 392-day low, with a total market capitalization of 2.03 billion yuan [1][2] - Jiuzhou Yigui operates in the environmental protection industry, which has an average PE ratio of 61.29 and a median of 33.56, placing Jiuzhou Yigui at the 107th position in the industry ranking [1][2] - As of the first quarter of 2025, only two institutions hold shares in Jiuzhou Yigui, with a total of 144,000 shares valued at 0.02 million yuan [1] Group 2 - Jiuzhou Yigui's main business includes research and development of vibration and noise reduction technology for rail transit, product manufacturing, engineering design, market promotion, testing consulting, and rail operation management services [1] - The company's latest financial report for the first quarter of 2025 shows a revenue of 26.06 million yuan, a year-on-year decrease of 44.47%, and a net profit of -6.02 million yuan, with a gross profit margin of 15.59% [1]