US Stock Market Move | The optical communication sector surged, Applied Optoelectronics (AAOI.US) rose nearly 18%.

On Thursday, the optical communication sector saw a general rise, with Applied Optoelectronics (AAOI.US) up nearly 18%, Lumentum (LITE.US) up over 5%, Coherent (COHR.US) up over 4%, and Corning Inc (GLW.US) up over 2%. In terms of news, global fiber optic prices are experiencing a new round of sharp increases, and the rising trend has spread from the Chinese market to Europe and America. Data shows that the spot price of Chinese G652.D bare fiber optic reached 83.40 RMB per kilometer in March 2026 (about $12.07 USD), a 165% increase compared to January 2026, and a staggering 418% increase year-on-year. This price has seen a cumulative increase of over 400% since May 2025, and has surpassed the previous cycle high of 78.80 RMB per kilometer for the first time. At the same time, similar products in the European market have also seen a 136% increase compared to January, indicating a tightening global supply situation.