Nvidia and AMD shares fell on October 8, 2026, with Nvidia declining approximately 2.9% to around $230.60 and AMD dropping 4.55% to roughly $616.48. A Financial Times report revealed that OpenAI’s annualized revenue run rate was approximately $50 billion, falling $20 billion short of the $70 billion figure that had been circulating, triggering widespread selling in AI-related stocks. Oracle, Broadcom, and Micron were also hit, losing between 4.3% and 5%, while the Nasdaq Composite slipped roughly 1%. Analysts attributed the revenue discrepancy to differences in accounting methodology rather than a genuine slowdown, noting that OpenAI’s enterprise segment still showed strong growth with a 107% run-rate increase. The episode exposes a structural vulnerability in AI infrastructure stocks tied to customer concentration, with AMD facing the most pointed version of this risk due to its significant multi-gigawatt MI450 commitments linked to OpenAI.
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