Why Applied Optoelectronics (AAOI) fell 4.50%
Applied Optoelectronics (AAOI) fell 4.50% on October 31, 2026 — Optics selloff on AI-spend fears hits AAOI.
What happened
The Nasdaq dropped 975 points as Intel's results helped trigger a selloff in mega-cap chipmakers, and Applied Optoelectronics fell 4.5% with the AI optics and interconnect group.
Why it moved
AAOI has no company-specific news behind this move; it fell because optical and interconnect names trade as high-beta AI plays, so a sector selloff hits them hard.
Why it matters
AAOI is part of the AI Optics & Interconnect theme, where data center expansion lifted optical networking demand. That rally is stalling, and the group is now trading on M&A headlines rather than fundamentals.
What would break the thesis
A rebound in AI infrastructure sentiment would help optics names recover with the group. Renewed concerns over hyperscaler spending would deepen the selloff in interconnect names.