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Microsoft’s $440 billion wipeout, and investors angry about OpenAI’s debt, explained

By
Eva Roytburg
Eva Roytburg
Fellow, News
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By
Eva Roytburg
Eva Roytburg
Fellow, News
Down Arrow Button Icon
January 29, 2026, 12:56 PM ET
Microsoft Chairman and Chief Executive Officer Satya Nadella (L), speaks with OpenAI Chief Executive Officer Sam Altman, who joined by video during the Microsoft Build 2025, conference in Seattle, Washington on May 19, 2025.Microsoft’s $440 billion wipeout, and investors angry about OpenAI’s debt, explained | Fortune

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