Overview
- Traders and analysts cited Anthropic’s new Claude legal plug‑in as a catalyst, sending RELX and Wolters Kluwer down double digits and pushing RELX toward its steepest single‑day drop since 1988.
- Anthropic’s tool automates tasks such as contract reviews, NDA triage and compliance checks, with the company stating it does not provide legal advice and that outputs require professional review.
- Selling spread across professional‑services and media names, with Experian, Sage, London Stock Exchange Group and Pearson down sharply, while Publicis sank after results and outlined about €900 million for 2026 acquisitions focused on AI and data.
- A Barclays investor survey ranked WPP, Omnicom and Publicis as the most exposed ad groups to AI, as investors demanded clearly monetized products to counter an “AI loser” label.
- The rout extended to North America, hitting Thomson Reuters, LegalZoom and major software names, while recent pressure on SAP and warnings from analysts underscored concerns about recouping AI spend and sustained multiple deflation.