On August 27, 2026, propelled by the robust performance of NVIDIA, optical communication concept stocks experienced a widespread upswing. In the A-share market, Yangtze Optical Fibre and Cable Company Limited soared to its daily limit, closely followed by Changxinbochuang and Focuslight Technologies Inc, among others. Prior to the opening of the US stock market, AXT Inc surged by more than 9%, Applied saw an increase of over 6%, while Credo, Marvell Technology, and other related stocks jumped by over 5%. Additionally, Coherent, Lumentum, and other companies in the sector also registered gains exceeding 3%.