Investors sue Microsoft over claims it overstated AI success and hid Azure slowdown

Microsoft is facing a shareholder lawsuit alleging that the company overstated the success of Copilot and its partnership with OpenAI while downplaying weakening Azure cloud growth. The complaint, filed by the City of St. Clair Shores Police and Fire Retirement System, claims Microsoft misled investors by hyping AI momentum despite internal fragmentation with OpenAI and rising infrastructure costs. Investors argue the company failed to disclose the scale of its capital spending, which reached $37.5 billion in Q2 and is projected to hit $146 billion in 2026. The lawsuit comes after Microsoft’s stock dropped 25 percent in Q1 FY26, its steepest decline since 2008. Former Azure engineers have also criticized the company for rushing AI products to market, causing talent loss and technical instability. Microsoft denies all allegations and says it will defend its public statements in court.

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