Optical stocks tied to AI data centers, including Applied Optoelectronics, Coherent, and Lumentum, are falling sharply as investors shift funds into defensive sectors. Despite strong year-to-date gains driven by AI infrastructure demand, these companies are seeing profit-taking amid a broader tech selloff. Their future performance depends on continued hyperscale data center orders, with management from these firms still optimistic about demand. This decline is seen as a sector rotation rather than a fundamental problem with the AI growth thesis.
As of Oct 15, 2026 22:13 WIB, Applied Optoelectronics trades at USD 83.18 with a 1-day decline of 3.53% on Pluang, while Coherent is down 6.09% at USD 247.29. Lumentum also fell 3.33% to USD 866.47. Pluang order activity shows a strong sell sentiment for Coherent at 92%, contrasting with a more balanced buy-sell ratio for Applied Optoelectronics and Lumentum, highlighting varied investor reactions within the optical tech sector.
Optical networking stocks, including Applied Optoelectronics, Coherent, and Lumentum, fell sharply after warnings from Broadcom and Intel about potential AI funding constraints. Applied Optoelectronics dropped 9%, the steepest among the group, despit...
Optical connectivity stocks like Applied Optoelectronics and Lumentum have surged 175% and 164% respectively in 2026, driven by growing AI data center demand. These companies supply key components for data center optics, a sector expanding rapidly du...
Lumentum's stock dropped 10%, leading a broader 7% selloff in AI optics stocks like Applied Optoelectronics and Coherent, despite having a fully booked order book through early 2029. This decline highlights a sector-wide selloff rather than company-s...
