每经记者｜刘明涛 每经编辑｜肖芮冬 5月28日，A股窄幅整理，截至上午收盘，上证指数午盘涨0.07%报3342.93点，深证成指跌0.04%，创业板指涨0.02%，北证50跌0.14%，科创50涨0.09%，中 证A500涨0.02%。A股半日成交6678.57亿元。 | 3342.93 +2.24 +0.07% | | | | | 上证指数 000001 | ਐ | | --- | --- | --- | --- | --- | --- | --- | | SSE 11:30:03 交易中 | | | | | 沪深市场核心指数 / ● + | | | 2503.42亿 关键比率 全额 | | | | | | | | 成交量 219.68 7. | | | | 2023 | 2024 2025Q | | | 3341.85 | | | 毛利率 | 17.19 | 17.22 | 17.17 | | File 3348.23 | | | 净利率 | 9.01 | 9.31 | 10.72 | | 最低 3336.73 | | | | | | | | 市智液中 14.4 1.31 | | 古洛莱比 | EPS | ...

Company Overview - Beijing Zhongke Haixun Digital Technology Co., Ltd. was established in 2005 and is headquartered in the Zhongguancun Science Park, focusing on high-tech products in marine engineering and underwater acoustics [1] - The company specializes in the development of high-performance signal processing platforms, sonar systems, simulation systems, and big data applications [1] Stock Performance - Zhongke Haixun has experienced a decline for seven consecutive trading days, with a cumulative drop of -13.41% [1] - The fund "Changcheng Jiujia Innovation Growth Mixed A" has entered the top ten shareholders of Zhongke Haixun and is a new addition in the first quarter of this year [1] Fund Performance - The year-to-date return for Changcheng Jiujia Innovation Growth Mixed A is -2.36%, ranking 1401 out of 2008 in its category [2] - The fund manager, You Guoliang, has been with Changcheng Fund Management Co., Ltd. since August 2019 and has managed various funds [3][4] Fund Manager Background - You Guoliang holds a master's degree and has previously worked at several securities and asset management companies before joining Changcheng Fund [3][4] - He has managed the "Changcheng Jiujia Innovation Growth Flexible Allocation Mixed Fund" since October 2019 [4]