中海达涨2.34%，成交额1.51亿元，主力资金净流入90.36万元

Group 1 - The core viewpoint of the news highlights the recent stock performance and financial metrics of Zhonghaidah, indicating a mixed trend with a year-to-date decline of 11.64% and a recent increase of 4.22% over the past 20 days [1][2] - Zhonghaidah's main business involves the research, manufacturing, and sales of high-precision positioning technology products and services, with a revenue composition of 83.32% from high-precision positioning equipment and solutions, and 16.68% from spatiotemporal data and information services [1] - As of September 30, 2025, Zhonghaidah reported a revenue of 683 million yuan, a year-on-year decrease of 7.48%, and a net profit attributable to shareholders of -45.98 million yuan, reflecting a significant year-on-year decline of 78.40% [2] Group 2 - The company has a total market capitalization of 7.174 billion yuan, with a trading volume of 151 million yuan and a turnover rate of 2.64% as of November 19 [1] - Zhonghaidah has a shareholder base of 65,000, which has decreased by 12.11% compared to the previous period, while the average circulating shares per person increased by 13.78% [2] - The company has cumulatively distributed 102 million yuan in dividends since its A-share listing, with no dividends distributed in the past three years [3]