Alphabet plunges 7% as Big Tech's AI spending spree loses investor favor

For years, Big Tech enjoyed a remarkable investor advantage: Wall Street tolerated—even celebrated—massive capital spending on artificial intelligence as long as revenues climbed. That implicit contract has shattered. Alphabet's Thursday plunge, despite a blockbuster 82% surge in cloud revenue, marks the moment the market's appetite for capex-heavy growth collapsed. The shift is structural, not cyclical. Investors are now fixated on free cash flow deterioration, rising debt, and the fundamental question of whether AI infrastructure investments will ever generate returns. Alphabet's Q2 free cash flow turning negative for the first time since 2004 shocked the market precisely because it exposes the real cost of the AI arms race: even a company with Google's revenue scale cannot maintain both heavy capital spending and positive cash generation simultaneously.

The selloff extends across the entire Magnificent Seven. Microsoft, despite its early AI dominance through its OpenAI stake, has fallen 21% this year on worries that it is falling behind despite spending more than $190 billion on capex. Meta is down 9.8% amid questions about the wisdom of its own AI investments. Meanwhile, the very beneficiaries of Big Tech's spending—chip makers like Micron and Advanced Micro Devices—are themselves in freefall. The Philadelphia Semiconductor Index, up 101% through mid-year, has lost 17% in July and is experiencing volatility at its highest since 2020, with 17 moves of 5% or more this year matching the record since 2008. This volatility underscores a deeper unease: if Big Tech cannot convince investors that its AI spending will pay off, how can chip makers justify their own valuations? Apple's contrasting strength—up 23% in 2026 by avoiding heavy AI capex and partnering instead—suggests the market is beginning to reward capital discipline over infrastructure aggression.