中科海讯涨2.17%，成交额1.37亿元，主力资金净流出325.05万元

Core Viewpoint - Zhongke Haixun's stock price has shown significant volatility, with a year-to-date increase of 142.43%, but recent declines in the short term raise questions about future performance [1][2]. Financial Performance - For the first half of 2025, Zhongke Haixun reported operating revenue of 95.97 million yuan, a year-on-year decrease of 9.61%, and a net profit attributable to shareholders of -64.68 million yuan, down 12.09% year-on-year [2]. - The company has distributed a total of 20.72 million yuan in dividends since its A-share listing, with 7.02 million yuan distributed over the past three years [3]. Stock Market Activity - As of September 29, Zhongke Haixun's stock price was 46.57 yuan per share, with a market capitalization of 5.498 billion yuan. The stock experienced a trading volume of 137 million yuan and a turnover rate of 2.62% [1]. - The stock has appeared on the "Dragon and Tiger List" six times this year, with the most recent appearance on August 19, where it recorded a net purchase of 39.99 million yuan [1]. Shareholder Information - As of September 19, the number of shareholders for Zhongke Haixun was 21,900, a decrease of 2.72% from the previous period, with an average of 5,197 circulating shares per shareholder, an increase of 2.79% [2]. - The fourth largest circulating shareholder is Changcheng Jiujia Innovation Growth Mixed A, holding 4.5 million shares, which is an increase of 250,000 shares compared to the previous period [3]. Business Overview - Zhongke Haixun, established on July 18, 2005, and listed on December 6, 2019, specializes in the research, development, production, and sales of sonar-related products. Its main business revenue composition includes signal processing platforms (41.94%), underwater big data and simulation systems (39.42%), sonar systems (17.69%), and others (0.95%) [1]. - The company operates within the defense and military industry, specifically in the maritime equipment sector, and is associated with concepts such as aerospace military, small-cap stocks, marine economy, marine engineering equipment, and artificial intelligence [2].