Nasdaq 100 posts worst day in four months as AI spending worries mount
The Nasdaq 100 fell 2.9% and the S&P 500 lost 1.2%, per Stocktwits, as investors weighed hyperscaler capex and a jump in oil prices.
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what happened
According to Stocktwits, the S&P 500 closed down 1.2% on Thursday and the Nasdaq 100 lost 2.9%, its weakest session in four months. The Dow Jones Industrial Average was flat, while the Russell 2000 gained 0.1%. Semiconductor ETFs fell 6% to 7% as Micron, Nvidia and Broadcom weakened. Meta shares dropped about 6% after it reported negative free cash flow of $2.12 billion and raised the floor of its capex forecast from $130 billion to a range of $135 billion to $145 billion. Brent rose 4% to $113.17 a barrel and WTI climbed 2.39% to $99.47 on reports of possible US and Israeli strikes on Iranian sites.
why it matters
Heavy AI spending combined with expensive crude is weighing on technology stocks and making indexes more sensitive to capex news from large companies. Index futures had partly recovered by the time of publication.
market impact
US tech and Nasdaq 100: pressure from rising AI capex; oil: geopolitical risk premium lifts Brent and WTI
tags
instruments
sources
- Nasdaq 100 Clocks Worst Day In Four Months As Investors Grow Weary Of Capex, Elevated Debt — META, SPCX, BE, MRNA In Focus — Stocktwits, 22 October 2026 at 23:44 UTC
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