tech
January 29, 2026
Microsoft lost $357 billion in market cap as stock plunged most since 2020
As investors sold shares of Microsoft on Thursday, the $3.2 trillion company dragged down the software complex and the S&P 500 index.
TL;DR
- Microsoft shares fell approximately 10%, their largest daily decline since March 2020.
- The company's market capitalization decreased by $357 billion.
- Azure's cloud growth rate was reported at 39%, missing the consensus of 39.4%.
- Microsoft provided lower-than-expected revenue guidance for its More Personal Computing segment.
- Some analysts questioned the return on investment for AI initiatives like Microsoft 365 Copilot.
- Other analysts supported Microsoft's long-term strategy, attributing performance to capacity constraints and prioritizing future growth.
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