Tech Sell-Off Drags Global Stocks Lower
Technology shares led a weekly decline in U.S. equities as investors questioned whether heavy AI spending will pay off.
Updated on Nov. 2, 2026 in Stock Markets
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U.S. stock markets fell last week, with the Nasdaq down 2.86%, the S&P 500 off 1.82% and the Dow Jones down 1.09%, after disappointing technology earnings triggered a sell-off in technology and semiconductor shares. Markets in South Africa also dropped sharply on Friday, led by resource and precious-metal stocks.
Why it matters
Investor doubts about whether large AI investments will generate sustainable profits drove the technology-led decline, while rising oil prices added to inflation concerns. The weakness is weighing on global sentiment heading into a week of central bank and labor-market signals.
Weekly index moves put the Nasdaq down 2.86%, the S&P 500 down 1.82% and the Dow Jones down 1.09%, while the JSE All Share fell 2.20% on Friday with resource stocks down 5.12%. Whether the tech-led slide persists depends on how upcoming earnings and AI-spending guidance develop, which the extraction does not resolve.
The players
Reserve Bank of Australia
Australia's central bank, which is expected to consider raising interest rates on Tuesday amid inflation pressures.
The details
Technology and semiconductor stocks sold off after disappointing earnings, pulling U.S. benchmarks lower, while Asian markets rose on Monday with the Hang Seng up 0.61% and the Nikkei 225 up 0.44%. Gold prices fell below $3,900 per ounce, followed by a sell-off in South African resource and precious-metal shares.
Timeline
Friday: JSE declined sharply, with resource and precious-metal stocks leading losses.
Last week: U.S. equity markets sold off on technology earnings.
Monday: Asian markets traded higher as concerns over AI were discussed.
Tuesday: The Reserve Bank of Australia is expected to consider an interest-rate increase.
November 3, 2026: U.S. midterm elections are scheduled.
Market Dynamics
The sell-off mirrors the earlier pattern in which investor skepticism about heavy technology spending hit U.S. equities after the dot-com boom. Whether AI spending will prove as overextended as that earlier cycle is not established by the available data.
Investors with exposure to technology and semiconductor holdings saw their portfolios fall during the week, a reminder that concentrated sector positions can amplify weekly swings. Those tracking global allocations may want to review how much of their equity exposure sits in the Nasdaq and related AI-linked names.
The takeaway
Concentrated exposure to a single theme such as AI can magnify losses when earnings disappoint, so checking sector weightings against your own risk tolerance is a practical step. Watching upcoming central bank decisions and employment data can help frame how quickly sentiment may shift.
What happens next
The Reserve Bank of Australia is expected to consider an interest-rate increase on Tuesday, and U.S. employment data and ISM surveys are expected to shape sentiment in the coming days.
Further reading
For more on how these moves fit into broader market trends, see Stock Markets.
Source note: This article includes information reported by BizWatchNigeria.
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