大庆华科收盘上涨1.78%，滚动市盈率122.20倍，总市值22.30亿元

Group 1 - The core viewpoint of the articles highlights Daqing Huake's current stock performance, with a closing price of 17.2 yuan, an increase of 1.78%, and a rolling PE ratio of 122.20, marking a new low in 20 days, with a total market value of 2.23 billion yuan [1] - Daqing Huake's industry average PE ratio is 45.59, with a median of 38.06, placing the company at the 152nd position in the industry ranking [2] - As of March 31, 2025, Daqing Huake has 8,613 shareholders, a decrease of 352 from the previous count, with an average holding value of 352,800 yuan and an average shareholding of 27,600 shares [1] Group 2 - The main business of Daqing Huake includes the production and sales of petrochemical products, import and export operations, and warehousing services, with key products being C9 and C5 series petroleum resins, refined acetonitrile, polypropylene powder, and modified polyolefin plastics [1] - The company holds 13 national patents, including 8 invention patents, all of which have been industrialized, with its product technology being at the leading level domestically [1] - The latest quarterly report for Q1 2025 shows that the company achieved an operating income of 502 million yuan, a year-on-year increase of 3.97%, and a net profit of 7.1271 million yuan, a year-on-year increase of 93.95%, with a sales gross margin of 6.52% [1]