科安达跌2.08%，成交额1441.78万元，主力资金净流入82.93万元

Group 1 - The core viewpoint of the news is that 科安达's stock has experienced fluctuations, with a current price of 12.26 yuan per share, reflecting a year-to-date increase of 21.37% but a recent decline over various time frames [1] - As of September 30, 科安达 reported a total revenue of 208 million yuan for the first nine months of 2025, representing a year-on-year growth of 3.60%, while the net profit attributable to shareholders decreased by 12.76% to approximately 60.04 million yuan [2] - The company has distributed a total of 437 million yuan in dividends since its A-share listing, with 288 million yuan distributed over the past three years [3] Group 2 - 科安达's main business involves providing products, services, and system solutions in the rail transit sector, with revenue composition as follows: 67.23% from rail transit signal control systems, 26.95% from lightning protection and intelligent diagnostics, 5.39% from system integration, 0.29% from switch snow melting, and 0.13% from other sources [1] - The company is categorized under the Shenwan industry classification of mechanical equipment, specifically in rail transit equipment, and is associated with concepts such as railway infrastructure, maglev, intelligent transportation, new infrastructure, and high-speed rail [1]