Thomson Reuters beats on Q4 revenue, but AI competition spooks investors

What happened

Thomson Reuters ($TRI) reported a 5% rise in Q4 revenue to about $2.0B, with strength across Legal, Tax and Accounting, and Corporate segments. Management guided to roughly 7.5% to 8% revenue growth in 2026 and highlighted accelerating AI and agentic product capabilities, but the stock fell as investors weighed rising competition from AI-first tools moving into legal workflows.

Why it matters for traders

This is a clean read-through on the next phase of the AI trade: it is not just chips and cloud. It is AI eating into high-margin professional information and workflow software, starting with legal and tax research. The market is rewarding companies with proprietary data moats and clear AI monetisation, and punishing incumbe ...