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]