中达安涨2.04%，成交额4430.11万元，主力资金净流出57.24万元

Group 1 - The core viewpoint of the news is that Zhongda An's stock has shown a significant increase in price and trading activity, with a year-to-date increase of 48.31% and a market capitalization of 2.035 billion yuan [1] - As of October 13, Zhongda An's stock price reached 14.52 yuan per share, with a trading volume of 44.3011 million yuan and a turnover rate of 2.60% [1] - The company has experienced a net outflow of main funds amounting to 572,400 yuan, with large single purchases accounting for 17.48% and sales for 18.77% of the total trading volume [1] Group 2 - Zhongda An's main business involves project management services, primarily engineering supervision, with revenue contributions from various sectors including power supervision (20.73%), civil engineering supervision (19.72%), and consulting and agency services (18.20%) [1] - As of June 30, the number of shareholders increased by 41.65% to 15,100, while the average circulating shares per person decreased by 29.02% to 7,967 shares [2] - For the first half of 2025, Zhongda An reported a revenue of 302 million yuan, a year-on-year decrease of 8.48%, and a net profit attributable to shareholders of 1.848 million yuan, down 59.99% year-on-year [2] Group 3 - Since its A-share listing, Zhongda An has distributed a total of 30.3829 million yuan in dividends, with 1.3632 million yuan distributed over the past three years [3]