YOFC(SH:601869) Xuan Gu Bao·2026-02-02 10:35Group 1: Stock Market Activity - On the institutional leaderboard, 40 stocks were listed, with 20 showing net buying and 20 showing net selling [1] - The top three stocks with the highest net buying by institutions were: Changfei Fiber (315 million), Tongyuan Petroleum (216 million), and Tongguang Cable (115 million) [1] Group 2: Electric Power Equipment Industry - The global electric power equipment sector is entering a prolonged upcycle, with IEA predicting that grid-related investments will reach approximately 650 billion by 2035 [3] - The demand for electric transformers is expected to grow significantly, with a year-on-year export growth rate of over 45% for transformers from January to November 2025 [3][4] - The delivery cycle for large transformers in Europe has extended from 6-8 months to 3-4 years, indicating a tight supply situation [4] Group 3: Fiber Optics Industry - The price of G.652.D bare fiber has reportedly exceeded 30 yuan per core kilometer, while G.657.A2 has surpassed 60 yuan per core kilometer, reflecting a supply-demand imbalance [5] - The demand for high-end single-mode and multi-mode fibers is expected to increase due to the acceleration of AI applications, driving the need for efficient data transmission in data centers [5]