长光华芯：光通信相关产品对本年度销售额及利润贡献量存在不确定性

Core Viewpoint - The stock of Changguang Huaxin (688048.SH) experienced an abnormal trading fluctuation, with a cumulative price increase of 30% over three consecutive trading days from November 24 to November 26, 2025, attributed to rising demand for computing power in the optical communication sector [1] Company Summary - The company has achieved mass production of its 100G EML products and has begun sample delivery for its 200G EML products [1] - The 100G VCSEL, 100mW CW DFB, and 70mW CWDM4DFB chips have reached mass production and shipping levels [1] - The contribution of these products to the company's sales and profits for the current year remains uncertain [1] Industry Summary - The recent increase in computing power demand is a significant factor influencing the company's stock performance and product development [1] - There are inherent uncertainties and risks associated with product research and development, sample testing, product introduction, and market expansion [1]