中科海讯股价跌5.44%，广发基金旗下1只基金重仓，持有2.03万股浮亏损失6.09万元

Group 1 - Zhongke Haixun experienced a decline of 5.44% on September 2, with a stock price of 52.10 yuan per share and a total market capitalization of 6.15 billion yuan [1] - The company, established on July 18, 2005, specializes in the research, production, and sales of sonar-related products, with revenue composition as follows: signal processing platform 66.29%, sonar systems 24.81%, underwater big data and simulation systems 5.03%, unmanned detection systems 2.99%, and others 0.88% [1] Group 2 - According to data, one fund under GF Fund has a significant holding in Zhongke Haixun, specifically the GF Baifa Big Data Value Mixed A Fund (001731), which increased its holdings by 4,000 shares in the second quarter, bringing the total to 20,300 shares, representing 3.99% of the fund's net value [2] - The GF Baifa Big Data Value Mixed A Fund was established on June 16, 2017, with a latest scale of 10.93 million yuan, achieving a year-to-date return of 38.77% and a one-year return of 59.3% [2] Group 3 - The fund manager of GF Baifa Big Data Value Mixed A Fund is Yang Zhidong, who has been in the position for 3 years and 26 days, with a total asset scale of 23.32 million yuan [3] - During Yang Zhidong's tenure, the best fund return was 11.59%, while the worst was 10.66% [3]