Arthur J. Gallagher & Co.
Arthur J. Gallagher & Co. (AJG) Market Cap & Net Worth
Live market cap, enterprise value, and global rank — multi-year chart and annual table below.
ajg · market cap & enterprise value · FMP · as of Jun 8, 2026
Core market cap & key metrics
As of Jun 8, 2026, Arthur J. Gallagher & Co. (AJG) has a market cap — also referred to as its net worth or valuation — of $55.3B, making it one of the top most valuable companies globally. Market Cap = $215.09 × shares outstanding.
Market cap history — by year
* 2026 = year-to-date · Year-end market cap · Source: FMP
Market cap by year
Compared to Peers
View Financial Services sectorAbout Market Cap, Net Worth & Valuation
Arthur J. Gallagher & Co. (AJG) has a market cap — also referred to as its net worth or valuation — of $55.3B as of Jun 8, 2026, making it the #0 most valuable company globally. Market Cap = Stock Price × Shares Outstanding.
Arthur J. Gallagher & Co. reached its all-time high market cap of $108.7B on Jun 2, 2025. Comparing the Arthur J. Gallagher & Co. market cap history illustrates one of the most extraordinary corporate growth stories.
Investors frequently compare Arthur J. Gallagher & Co. net worth vs peers and ask how Arthur J. Gallagher & Co. valuation compares to other countries. Its market cap reflects continued investor confidence.
Frequently Asked Questions
AJG market cap · 6 questionsArthur J. Gallagher & Co.'s net worth — measured as market capitalization — is $55.3B as of Jun 8, 2026. It ranks #0 globally. Market Cap = $$215.09 (price) × shares outstanding.