AI Data-Center Demand Drives Optical Transceiver Boom, Sending AAOI Up 90% in Two Days
AI data centers require high-speed fiber links to connect large numbers of servers used for training and running large models, fueling upgrades to 800G optical transceivers. Applied Optoelectronics (AAOI), a U.S. supplier of fiber-optic networking products, has consequently drawn market attention, with its revenue outlook seen as a bellwether for AI infrastructure spending.
AAOI shares gained more than 90% over the two most recent trading sessions cited in the reports, including a rise of more than 24% in the latest session. The company expects demand for its 800G products to boost future revenue. Over the same period, Lumentum (LITE) was added to the Nasdaq-100, though the reports provided no exact trading dates, order values or incremental revenue figures.
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The history behind this eventAOI Surges to Record on $200 Million 1.6T Transceiver Order
Applied Optoelectronics Inc. (AOI) develops and manufactures optical networking products used in AI data centers, telecommunications and broadband access. Faster GPUs and larger AI clusters are sharply increasing traffic between servers, pushing hyperscale cloud operators beyond 400G and 800G links toward 1.6-terabit connections. That transition matters because optical transceivers are essential to scaling computing capacity, making suppliers such as AOI key beneficiaries of the infrastructure spending behind generative AI.
On March 9, 2026, AOI said a long-standing major hyperscale customer placed its first volume order for 1.6T data-center transceivers, worth more than $200 million. Shipments are expected to begin early in the third quarter after product qualification and conclude in the fourth quarter. Applied Optoelectronics shares jumped 15.74% to a record closing high of $110.62. The rally spread across U.S.-listed optical-networking suppliers, with AXT Inc. up 19.12%, Lumentum Holdings Inc. 14.73% and Coherent Corp. 7.04%.
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