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TrustFinance Global Insights
Feb 24, 2026
2 min read
186

Thomson Reuters shares surged over 11%, marking their largest single-day percentage gain since 2009. The rally was triggered by the announcement that its AI-powered assistant, CoCounsel, has successfully attracted one million users, significantly boosting investor confidence.
The stock's performance follows a period of market anxiety, where a recent $830 billion global selloff hit software stocks due to fears of AI disruption. The positive user adoption for CoCounsel, which is built on Anthropic's AI technology, counters these concerns and highlights the company's competitive edge in the legal AI sector.
This milestone validates the company's strategy, particularly its $650 million acquisition of AI startup Casetext in 2023. By integrating its vast proprietary legal data with advanced AI, Thomson Reuters is solidifying its position in the legal tech market, where its Legal Professionals division generates nearly one-third of its revenue.
The strong user adoption of CoCounsel demonstrates a clear demand for specialized, high-value AI applications. Investors will be closely watching if this momentum can be sustained and how it translates into future revenue growth, setting a positive precedent for incumbents leveraging proprietary data against general-purpose AI tools.
Q: Why did Thomson Reuters stock jump over 11%?
A: The stock surged after the company announced its AI assistant, CoCounsel, reached one million users, easing market fears about AI disruption.
Q: What is CoCounsel?
A: CoCounsel is an AI-powered assistant for legal professionals that automates tasks like research, document review, and drafting, built on technology from Casetext and Anthropic.
Source: Investing.com

TrustFinance Global Insights
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