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FTSE 100 down as AI worries knock data providers

Anthropic's legal AI plugin caused European software and data stocks to drop up to 17%, signaling investor concerns over AI disrupting traditional business models.

  • On Feb 3, the FTSE 100 index closed down 26.97 points, or 0.3%, at 10,314.59 as a broad sell-off in software and data stocks deepened after traders cited an updated Claude plugin from Anthropic, AI developer.
  • Anthropic, AI developer, released legal automation features on Jan 30 for its Claude Cowork tool, automating contract review and NDA triage, heightening investor jitters according to analysts.
  • Data and legal providers including Relx and Thomson Reuters plunged as Relx slid 14% and Thomson Reuters slumped nearly 18%, dragging others lower.
  • The FTSE 250 ended down 135.68 points, or 0.6%, at 23,290.37, with miners like Anglo American up 7.3% ahead of Feb 5 results, amid AI worries.
  • A Barclays survey published on Monday ranked WPP, Omnicom and Publicis as top "AI losers" while Publicis earmarked 900 million euros for 2026 AI acquisitions amid rising startup competition including Legora at a $1.8 billion valuation.
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Inc42 Media broke the news in on Tuesday, February 3, 2026.
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