中海达涨2.00%，成交额2.11亿元，主力资金净流出907.25万元

Group 1 - The core viewpoint of the news is that Zhonghaidah's stock has shown significant price increases and trading activity, indicating potential investor interest and market dynamics [1][2] - Zhonghaidah's stock price increased by 8.42% year-to-date, with a 4.77% rise over the last five trading days, 19.28% over the last 20 days, and 22.67% over the last 60 days [1] - The company reported a revenue of 683 million yuan for the period from January to September 2025, a year-on-year decrease of 7.48%, and a net profit attributable to shareholders of -45.97 million yuan, a decrease of 78.40% year-on-year [2] Group 2 - Zhonghaidah's main business involves the research, development, manufacturing, and sales of high-precision positioning technology products and services, with a revenue composition of 83.32% from high-precision positioning equipment and industry solutions, and 16.68% from spatiotemporal data and information technology [1] - The company is classified under the defense and military industry, specifically in military electronics, and is associated with concepts such as low-altitude economy, drones, satellite internet, and geographic information [2] - As of September 30, 2025, Zhonghaidah had 65,000 shareholders, a decrease of 12.11% from the previous period, with an average of 9,322 circulating shares per shareholder, an increase of 13.78% [2][3]