US Tech Stocks Erase Over $1 Trillion as Investors Question Returns on AI Capital Spending
What happened
U.S. technology equities lost more than $1 trillion in market capitalization on October 30, 2026, driven by investor unease over heavy capital expenditures on artificial intelligence that have yet to yield matching profits.
The Context
* Capital expenditure surged past cash generation, highlighted by Amazon projecting $220 billion in capex for 2026 alongside decelerating retail growth, while Alphabet previously shed $500 billion following elevated cash-burn figures. * Semiconductor players absorbed the sharpest hits, with Intel plunging 29% on weak forward guidance, dragging the Philadelphia Semiconductor Index down 7.2% as AMD, ARM, and Qualcomm dropped roughly 10%. * Broader equity indices felt immediate pressure, pulling the Nasdaq 100 down 3.4% and the S&P 500 down 1.8%, prompting capital rotations into U.S. Treasuries as rating agencies adjusted leverage outlooks.
The Number
erased in a single trading session, signaling that institutional markets now demand concrete revenue metrics rather than multi-billion-dollar infrastructure promises.
Takeaway
With analysts flagging potential further pullbacks between 14% and 27%, Big Tech faces immediate pressure to prove that generative software architectures can generate free cash flow before credit costs climb higher.
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