October 2026 AI stock sell-off stories

Oct 29, 2026

Amazon reports $77 billion AI capex as core e-commerce growth slows

Amazon disclosed capital spending of $77 billion to expand AI data centers while reporting its slowest e-commerce growth in three years, causing shares to drop as investors questioned the AI investment payoff.

Oct 29, 20266 sources

Oct 28, 2026

Google reports $51 billion AI spending as search revenue disappoints

Alphabet reported third-quarter results with AI spending exceeding $50 billion, leading to record cash burn. Core search advertising revenue came in below expectations, causing shares to fall 10% as investors questioned returns on massive AI investments.

Oct 28, 20264 sources

Microsoft reports Azure growth of 48% but cuts capex forecast on data center delays

Microsoft reported better-than-expected cloud revenue with Azure growing 48%, but reduced its capital expenditure forecast due to delays in data center construction and capacity constraints. The company disclosed $10 billion in revenue from OpenAI arrangements.

Oct 28, 20266 sources