Surviving the AI Capex Boom

Sparkline Capital

Kai Wu

Research

14 Pages

Kai Wu finds historical capital expenditure booms have typically resulted in overinvestment, excess competition, and poor stock returns. He suggests rotating toward a broader set of AI beneficiaries with lower capital requirements and valuations.

Published Date: October 2025

Key Takeaways

Capital Cycle Risk: Historical parallels to railroads and telecoms suggest overbuilding and weak returns often follow large capex surges.
Asset-Heavy Shift: AI investment is transforming Big Tech from asset-light to asset-heavy, a structure tied to lower future returns.
Broader AI Opportunity: Value lies beyond hyperscalers—in diversified, asset-light AI adopters with lower valuations and capital needs.
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