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The Largest Technology Companies by Market Cap in March 2026

Nvidia, Apple, and Microsoft command the technology sector.

By Lyle DalyUpdated Feb 24, 2026 at 2:23 PM EST | Fact-checked by Frank Bass

Key Points

  • Nvidia leads the tech sector with a market cap of $4.4 trillion, followed by Apple and Microsoft.
  • Market leaders like Nvidia and Microsoft have heavily invested in AI technology and infrastructure.
  • Tech stocks like Broadcom and Palantir show strong returns but carry higher volatility risks.

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