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Why Microsoft Fell 11% in January

Despite strong earnings growth and the unveiling of its own high-powered inference chip, Microsoft stock fell on dual fears related to software and OpenAI.

By Billy Duberstein Feb 4, 2026 at 9:19AM EST

Key Points

  • Microsoft's stock declined in January, despite reporting strong earnings.
  • The company also unveiled Maia 200, its industry-leading inference chip.
  • Investors are increasingly nervous about AI's effect on software, so merely "good" results won't cut it for now.

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