Gartner and Thomson Reuters fell on earnings. Both are back where they were the day before February's AI selloff.
Published · 1 min read
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Gartner fell 13.2% and Thomson Reuters 9.9% on 3 November. That left both within about 1% of their 2 February closes, after a shared low in June and a rally of 60% or more.
Gartner fell 13.2% and Thomson Reuters 9.9% on Tuesday, each on the day it reported third-quarter results. For both it was the third-worst day in our records, which start in April 2025. The drop took $1.96 billion off $IT and $5.22 billion off $TRI.
What stands out is where they closed. $IT finished at $204.22 and $TRI at $110.18. On 2 February they closed at $202.40 and $109.03. Nine months on, both are about 1% above that level.
The same path, on the same dates
The day after that February close, 3 February, is the worst day in our records for both stocks: Gartner fell 20.9% and Thomson Reuters 15.7%. Reuters reported that new AI tools from Anthropic deepened a selloff in data and software stocks that day.
Both then made their lowest close on the same session, 22 June. From there to Monday's close, Gartner rallied 87% and Thomson Reuters 60%.
| Gartner | Thomson Reuters | |
|---|---|---|
| Close, 2 Feb | $202.40 | $109.03 |
| Move, 3 Feb | -20.9% | -15.7% |
| Lowest close, 22 Jun | $125.73 | $76.55 |
| Close, 2 Nov | $235.26 | $122.24 |
| Close, 3 Nov | $204.22 | $110.18 |
What the headlines said
Reuters said Thomson Reuters' revenue rose but its shares fell on investment costs. Barron's said Gartner sank as a weak forecast underscored the threat from cheaper AI services.
Other data providers in the S&P 500 fell less: $FDS fell 3.2%, $EFX 2.5%, $VRSK 2.2% and $SPGI 1.9%. Gartner is now 54.6% below its May 2025 high, and Thomson Reuters 48.6% below its July 2025 high.
See it on the site
Sources
- Thomson Reuters revenue rises, shares drop on investment costs — Reuters (3 Nov 2026)
- Gartner Stock Sinks as Weak Forecast Underscores Threat From Cheaper AI Services — Barron's (3 Nov 2026)
- Anthropic's new AI tools deepen selloff in data analytics and software stocks, investors say — Reuters (4 Feb 2026)
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