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Tech sell-off drives US markets down by nearly $1tn after subpar earnings reports

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Cite

Montgomery, B. (2026, October 30). Tech sell-off drives US markets down by nearly $1tn after subpar earnings reports. The Guardian. https://www.theguardian.com/technology/2026/oct/30/tech-stocks-drop-earnings-report

Dated from the outlet's own feed. Check the original for its byline.

The Guardian · collected 2026-10-30 · by Blake Montgomery

Quick Summary

US markets experienced a significant decline driven by a tech stock sell-off following subpar earnings reports from major technology companies. On Friday, the Nasdaq lost nearly $1 trillion in value over one week and approximately $2 trillion within a month, while the S&P 500 fell more than 1%, erasing its October gains despite previously setting an all-time high this month. The downturn was exacerbated by concerns over whether substantial investments in artificial intelligence will yield sufficient returns quickly enough, with companies like Amazon and Alphabet facing investor scrutiny due to increased spending on AI infrastructure.
Written by AI on 2026-10-30, from this article's own text only (the story summary below draws on all the coverage).

AI analysis

Story summary

On October 28, Google's parent company Alphabet reported weaker-than-expected earnings for the third quarter, leading to a significant stock price drop starting that evening. By October 29, Alphabet’s stock plunged by as much as 15.8%, erasing over $500 billion in market value in just one day—its worst performance since going public more than two decades ago. This sharp decline was driven by concerns over the company's massive spending on artificial intelligence (AI) and whether such investments will yield sufficient returns. The drop also affected broader markets, with the tech-heavy Nasdaq losing nearly 2%, dragging down other major indices like the S&P 500 as well. This trend continued into October 30, when another significant market value loss of approximately $1 trillion from the Nasdaq was reported due to a deepening sell-off in technology stocks following more disappointing earnings reports and heightened investor scrutiny over AI investments' profitability.

Written for “Tech Sell-off Deepens Over AI Concerns” on 2026-10-31, grounded in this article and the 17 other(s) covering the same event.
Why this leaning score
This article does not take a side on a contested political question, so it has no leaning score. That is an answer rather than a gap: a match report or a rescue can be warmly or critically written without being left or right, and scoring it anyway is how approval of a subject gets recorded as a political position.
No political leaning scored for article 118121 · logged 2026-10-30

Story

📰 Tech Sell-off Deepens Over AI Concerns
Economy/Business · 18 article(s) covering the same event. Compare every outlet's account →

Compared with similar articles

This article reads unscored and hedges 5% of its claims. Each row says how that neighbour differs.
CBS News
Hedges 0 of 10 claims Outlet record 66/100
Global News
Hedges 0 of 23 claims Outlet record 63/100
NBC News
Hedges 0 of 31 claims Outlet record 60/100
BBC News
Hedges 0 of 10 claims Outlet record 69/100
CBC News
Hedges 2 of 27 claims Outlet record 60/100
Dawn
Hedges 1 of 28 claims Outlet record 71/100
“While both articles discuss a tech-related sell-off affecting US markets due to disappointing earnings, they describe different days of market activity and do not clearly overlap in time or specifics.”
Semafor
Hedges 0 of 5 claims Outlet record 60/100
“While both articles discuss poor earnings reports affecting tech companies and markets on the same day, Article A focuses specifically on Amazon and Intel's financial results, while Article B covers a broader sell-off in US tech stocks driven by multiple factors including these specific reports.”
The Sydney Morning Herald
Hedges 4 of 29 claims Outlet record 61/100
“The first article reports on a single day's market movements driven by Alphabet's earnings report, while the second describes a broader tech sell-off over multiple days.”
How this article was measured signals, leaning charts, publisher record, byline, topics and claims

Signals How these are calculated →

Claims extracted
21
sentences that state something as happening or true
Uncertain
5%
1 of 21 hedged ("reportedly", "may", "according to")
Leaning
not political
takes no side on a contested political question
Publisher signals
66/100
The Guardian's corrections and hedging, across everything collected from it. Not a measure of accuracy.
Outlets on this story
18
Economy/Business
Same framing elsewhere
1
articles that frame the event the way this one does
Analyzed 2026-10-30 · how these are computed

How this is being covered How these are calculated →

Article leaning vs. publisher reliability
Source leaning vs. consistency

Publisher

The Guardian · 2734 article(s) · 6 correction(s) detected
Running correction rate · 6 correction(s)

Who wrote this

Blake Montgomery
1 article(s) here · 1 carrying a prediction
🔮 More than $2tn in market value is set to be wiped from the Nasdaq 100 this month, as big tech earnings intensified investor scrutiny of whether the billions being poured into artificial intelligence can generate returns quickly enough.
The only article under this byline in the corpus.

Topics

Alphabet Amazon Meta Platforms Nasdaq SpaceX

Subjects

Alphabet ORG · 2× Amazon ORG · 2× Nasdaq ORG · 2× Intel ORG · 1× Meta Platforms ORG · 1× Nvidia ORG · 1× SpaceX ORG · 1× The Associated Press ORG · 1×

Narrative

A day earlier, Alphabet’s stock dropped more than 12%, wiping $500bn from its market capitalization, to its worst day on record after telling investors that it burned through more cash during the summer than the spring because of similar, mammoth investments in AI.
framing: assertive · carried by 1 article(s) · first seen 2026-10-30
🔮 More than $2tn in market value is set to be wiped from the Nasdaq 100 this month, as big tech earnings intensified investor scrutiny of whether the billions being poured into artificial intelligence can generate returns quickly enough.

Claims (21 extracted, 1 hedged)

A sell-off of tech stocks that began earlier this month and gained steam with disappointing earnings from leading tech companies drove US markets down by hundreds of billions of dollars Friday. asserted
that → begin → dollars
In total, the decline has knocked nearly $1tn in value off the tech-heavy Nasdaq exchange in one week and erased about $2tn in a month. asserted
decline → knock → month
The S&P 500, the index of the 500 most valuable companies in the US, fell by more than 1% Friday, losing hundreds of billions of dollars in market value. asserted
S&P → fall → value
It was on track to erase its gain for October, even though it set its all-time high during the same month. asserted
it → erase → month
The weakness for technology stocks dragged the Nasdaq composite down even further, more than 3%, also erasing hundreds of billions in value. asserted
weakness → drag → value
The Down Jones Industrial Average fell less. asserted
Average → fall → ?
More than $2tn in market value is set to be wiped from the Nasdaq 100 this month, as big tech earnings intensified investor scrutiny of whether the billions being poured into artificial intelligence can generate returns quickly enough. asserted
billions → set → returns
The wipeout would amount to slightly more than SpaceX’s entire market value. asserted
wipeout → amount → value
The index has fallen more than 5.8% so far in October as the AI trade ran into turbulence, with hyperscalers Meta Platforms, Alphabet and Amazon raising spending forecasts further as they race to expand AI infrastructure. asserted
they → fall → infrastructure
Intel tumbled nearly 30% and is flirting with its worst day since 1974, even though the chipmaker reported a stronger profit for the latest quarter than analysts expected. asserted
analysts → tumble → quarter
It gave a forecast for profit in the final three months of this year that fell far short of analysts’ expectations. asserted
that → give → expectations
Amazon fell 1.8% after reporting a weaker profit for the summer than analysts expected. asserted
analysts → fall → summer
The company also disclosed that it had spent more this year than anticipated. asserted
it → disclose → more
A day earlier, Alphabet’s stock dropped more than 12%, wiping $500bn from its market capitalization, to its worst day on record after telling investors that it burned through more cash during the summer than the spring because of similar, mammoth investments in AI. asserted
it → drop → AI
Worries are rising about whether all those hundreds of billions of dollars will produce enough profit and productivity to make AI investment worth it. asserted
investment → rise → profit
At the same time, stocks of computer chip companies and other winners from the frenzy to build AI datacenters have come under pressure on concerns that high interest rates may slow the further build out of data centers. uncertain
rates → build → centers
A drop of 3.1% for Nvidia, previously worth about $5tn, whose chips have made it the poster child of the AI frenzy, was the heaviest force pulling the S&P 500 downward. asserted
it → make → S&P
Such losses overshadowed an otherwise mixed day for the rest of Wall Street, with the S&P 500 roughly evenly split between gainers and losers. asserted
S&P → overshadow → gainers
Expectations are high broadly for US companies’ ability to make bigger profits, even though people around the world are feeling discouraged about high inflation and high fuel prices. asserted
people → make → inflation
Such expectations are what drove the S&P 500 to its record earlier this month. asserted
what → drive → record
The Associated Press contributed reporting asserted
Press → contribute → reporting
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