雪迪龙跌2.02%，成交额6495.33万元，主力资金净流出442.63万元

Group 1 - The core viewpoint of the news is that Xuedilong's stock has experienced fluctuations, with a current price of 8.71 yuan per share and a market capitalization of 5.537 billion yuan, while the company has shown a year-to-date stock price increase of 41.53% [1] - As of September 30, the number of shareholders for Xuedilong increased by 39.39% to 49,500, while the average circulating shares per person decreased by 28.26% to 7,244 shares [2] - In the first nine months of 2025, Xuedilong achieved operating revenue of 888 million yuan, representing a year-on-year growth of 6.34%, and a net profit attributable to shareholders of 115 million yuan, reflecting a significant increase of 52.10% [2] Group 2 - Xuedilong's main business segments include ecological environment monitoring systems (78.96% of revenue), industrial process analysis systems (14.03%), and other services (7.01%) [1] - The company has cumulatively distributed dividends of 1.316 billion yuan since its A-share listing, with 589 million yuan distributed over the past three years [3] - Xuedilong operates within the environmental protection industry, specifically in sectors such as solid waste treatment, energy conservation and environmental protection, carbon neutrality, and hydrogen energy [2]