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The Largest Financial Companies by Market Cap in August 2026

Berkshire Hathaway, JPMorgan Chase, and Visa are the biggest companies by market cap in the financial sector

By Lyle DalyUpdated May 3, 2026 at 7:38 PM EST | Fact-checked by Frank Bass

Key Points

  • Berkshire Hathaway leads in financial sector market cap at $1.1 trillion.
  • JPMorgan Chase, largest U.S. bank, holds $4.8 trillion in assets.
  • Visa processed 258 billion transactions in its fiscal year 2025.

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