Amazon, Alphabet and Microsoft Head Into Q3 Earnings Under a $1 Trillion AI Spending Microscope

Microsoft, Alphabet and Amazon are preparing to report third-quarter 2026 results against a backdrop of surging AI capital expenditures that collectively approach $1 trillion across the four largest hyperscalers. Investors are focused on whether the massive infrastructure outlays are translating into measurable revenue growth, with Alphabet having raised its full-year 2026 capex guidance to between $195 billion and $205 billion and Amazon lifting its own forecast to roughly $220 billion, up from $200 billion earlier in the year.

The scrutiny extends beyond spending totals. Workforce reductions across the top-tier tech companies are prompting questions about how AI is reshaping employment, with analysts and investors watching whether headcount cuts signal efficiency gains from AI adoption or a broader restructuring of the industry's labor model.

Smaller companies in the AI supply chain are already showing results. Celestica posted third-quarter revenue that surged 24% sequentially, driven by higher hyperscaler demand in networking switch programs and accelerating AI compute volumes, with adjusted earnings per share above the high end of its guidance range. Cadence Design Systems and Rambus also reported estimate-beating third-quarter results. Celestica noted its 2027 outlook reflects accelerating revenue growth and operating margin expansion, suggesting hyperscaler AI build-outs show no sign of slowing as the largest cloud companies step up to report.