The tiny fiber-optic cables that shuttle data between servers in AI data centers just became a geopolitical flashpoint. Applied Optoelectronics (AAOI) rocketed roughly 17% after reports that the FCC, under the Trump administration, has drafted a rule banning imports of new Chinese-made optical transceivers destined for AI data centers.
AAOI wasn’t alone. Coherent (COHR) climbed 11-13%, Lumentum (LITE) gained 6-11%, and even Corning picked up about 8%. The common thread: all of them are domestic manufacturers who stand to benefit if Chinese competitors get locked out of the US market.
What the FCC is actually proposing
Optical transceivers are the components that convert electrical signals into light pulses and back again, enabling high-speed data transmission across fiber-optic cables. They are, however, essential to every hyperscale data center powering AI workloads, cloud computing, and, yes, crypto mining operations.
The FCC’s draft rule would block imports of new Chinese-made transceivers for use in AI data centers. The stated rationale centers on concerns about potential data theft and supply chain disruptions from foreign suppliers. Previously authorized models would reportedly be exempt, meaning existing deployments wouldn’t need to be ripped out overnight.
