How major US stock indexes fared Friday 10/30/2026
A sharp technology sell-off hit broad indexes as investors reassessed AI spending, earnings and the outlook for corporate returns.
TL;DR
- AP and Reuters reported U.S. stocks fell on October 30, with the S&P 500 posting its worst day since June.
- Intel’s sharp decline and concerns about the scale and payoff of AI infrastructure spending weighed on technology shares.
- The reports describe market repricing and investor concerns; they do not establish that AI investment returns have permanently deteriorated.
U.S. equities fell on October 30 as technology shares extended a sell-off. AP reported the S&P 500 fell 1.8%, its worst session since June; Reuters described a global equity decline as investors questioned returns from large AI investments. [1] [2]
Intel led declines after its profit outlook fell below analysts’ expectations, while concerns about technology companies’ spending plans added pressure. AP reported Intel’s worst daily fall since 1974 and said Amazon’s earnings renewed concern about AI investment levels. [1] [2]
The move followed a week of major technology earnings and AI infrastructure commitments. Reuters reported investors moving toward U.S. government bonds as the sell-off intensified; AP noted that the 10-year Treasury yield moved lower. [1] [2]
The reports capture a reassessment of earnings, capital spending and valuations; they do not settle whether AI investments will earn adequate returns over time. Upcoming company guidance and results will show whether these concerns persist. [1] [2]
Why it matters
The session linked AI infrastructure spending with near-term equity valuations and a shift toward government bonds. The reaction reflects uncertainty about returns, not proof the investment cycle has ended.
Editor's note
Market figures describe October 30; no investment advice or forecast is offered.