Changfei Optic (601869.SH): The business related to hollow core fiber optics has not yet had a significant impact on the company's financial data.

Wise Finance APP News, Changfei Optic (601869.SH) announced that the company's stock price has increased significantly for three consecutive trading days from September 16, 2025 to September 18, 2025, with a cumulative deviation of over 20%. The stock price has fluctuated significantly.