Investor letter: TCI, one of the world's biggest hedge funds, cut almost all of its $8B stake in Microsoft, citing AI-related risks to Office and Azure (Costas Mourselas/Financial Times)

TCI, a major hedge fund, dramatically reduced its Microsoft stake from 10% to 1%, citing concerns that AI integration into Office and Azure products poses business risks—a significant signal that enterprise customers and investors question the ROI and reliability of Microsoft's AI strategy. This divestment suggests potential headwinds for Microsoft's core productivity and cloud revenue streams, which could impact IT organizations' strategic decisions around Microsoft platform adoption and investment priorities. For CIOs, this reflects growing market skepticism about AI's immediate business value and highlights the need to carefully evaluate AI-driven feature adoption rather than assuming all AI enhancements will drive measurable productivity gains.