Xin Lang Cai Jing·2026-01-19 01:49Group 1 - The core viewpoint of the news is that Changfei Fiber has seen a significant stock price increase, rising 7.53% to 123.01 yuan per share, with a total market capitalization of 1018.41 billion yuan and a cumulative increase of 6.72% over three days [1] - Changfei Fiber's main business focuses on the telecommunications industry, particularly in areas related to telecom operators and data communication, with a complete industrial chain that includes the research, innovation, and manufacturing of optical fiber preforms, optical fibers, and cables [1] - The revenue composition of Changfei Fiber is as follows: optical transmission products account for 60.25%, optical interconnection components for 22.61%, and other products for 17.13% [1] Group 2 - From the perspective of major fund holdings, Guotai Fund has a significant position in Changfei Fiber, with the Guotai Jinlu Mixed Fund holding 58,100 shares, representing 4.94% of the fund's net value, making it the seventh-largest holding [2] - The Guotai Jinlu Mixed Fund has generated a floating profit of approximately 500,200 yuan today, with a floating profit of 418,300 yuan during the three-day increase [2] - The Guotai Jinlu Mixed Fund, managed by Zhao Dazhen, has a total asset size of 1.19 billion yuan and has achieved a return of 45.85% over the past year, ranking 2,592 out of 8,164 in its category [3]