CASTECH(SZ:002222) Xin Lang Cai Jing·2025-11-28 02:48Group 1 - Fuzhou Fuzhijian Technology Co., Ltd. has seen its stock price increase by 21.84% over the past four days, closing at 52.22 CNY per share with a market capitalization of 24.556 billion CNY [1] - The company's main business involves the research, production, and sales of optoelectronic components related to lasers and optical communications, with revenue breakdown as follows: 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] Group 2 - Yinhua Fund has a significant holding in Fuzhijian Technology, with its strategic emerging flexible allocation fund holding 99,000 shares, representing 4.78% of the fund's net value, ranking as the seventh largest holding [2] - The fund has achieved a year-to-date return of 34.48% and a one-year return of 30.77%, with a total fund size of 1.03 billion CNY [2] - The fund managers, Su Jingran and Xiang Yida, have notable performance records, with Su achieving a best return of 89.41% and Xiang achieving a best return of 106.93% during their respective tenures [2]