CASTECH(SZ:002222) Xin Lang Cai Jing·2025-10-17 07:16Core Insights - Fuzhou Fuzhijian Technology Co., Ltd. has experienced a significant decline in stock price, dropping 2.77% to 43.80 CNY per share, with a total market capitalization of 20.597 billion CNY and a cumulative drop of 16.2% over the past four days [1] Company Overview - Fuzhijian Technology, established on October 31, 2001, and listed on March 19, 2008, specializes in the research, production, and sales of optoelectronic components related to lasers and optical communications [1] - The company's main business revenue composition includes: precision optical components (35.06%), nonlinear optical crystal components (24.37%), laser devices (21.49%), laser crystal components (17.27%), and others (1.80%) [1] Fund Holdings - Huatai Baoxing Fund holds a significant position in Fuzhijian Technology through its Huatai Baoxing Industrial Upgrade Mixed Fund A (021792), which held 19,000 shares in the second quarter, accounting for 5.79% of the fund's net value [2] - The fund has incurred a floating loss of approximately 23,800 CNY today and a total floating loss of 160,900 CNY during the four-day decline [2] Fund Performance - The Huatai Baoxing Industrial Upgrade Mixed Fund A, managed by Shang Shuohui, has a total asset size of 80.9 million CNY, with a best return of 147.98% and a worst return of -38.16% during the manager's tenure of 8 years and 210 days [3]