Arthur J. Gallagher & Co. (AJG)
NYSE: AJG · Real-Time Price · USD
270.98
+12.61 (4.88%)
At close: Oct 22, 2026, 4:00 PM EDT
272.64
+1.66 (0.61%)
After-hours: Oct 22, 2026, 7:52 PM EDT
Arthur J. Gallagher & Co. Market Cap
Arthur J. Gallagher & Co. has a market cap or net worth of $69.46 billion as of October 22, 2026. It is the 372nd most valuable company in the world and the 198th biggest in the United States. Its market cap has decreased by 2.90% in one year.
Market Cap
69.46B
Enterprise Value
82.18B
1-Year Change
-2.90%
Global Rank
Country Rank
#198 United States
Category
ChartMarket Cap Chart
Since December 1, 1998, Arthur J. Gallagher & Co.'s market cap has increased from $784.20M to $69.46B, an increase of 8,757.85%. That is a compound annual growth rate of 17.43%.
| Date | Market Cap | % Change |
|---|---|---|
| Oct 22, 2026 | 69.46B | 4.52% |
| Dec 31, 2025 | 66.46B | 6.71% |
| Dec 31, 2024 | 62.28B | 28.27% |
| Dec 29, 2023 | 48.55B | 22.14% |
| Dec 30, 2022 | 39.75B | 13.03% |
| Dec 31, 2021 | 35.17B | 47.82% |
| Dec 31, 2020 | 23.79B | 33.95% |
| Dec 31, 2019 | 17.76B | 31.23% |
| Dec 31, 2018 | 13.54B | 18.30% |
| Dec 29, 2017 | 11.44B | 23.74% |
| Dec 30, 2016 | 9.25B | 27.81% |
| Dec 31, 2015 | 7.23B | -4.79% |
| Dec 31, 2014 | 7.60B | 23.07% |
| Dec 31, 2013 | 6.17B | 43.23% |
| Dec 31, 2012 | 4.31B | 14.18% |
| Dec 30, 2011 | 3.77B | 22.45% |
| Dec 31, 2010 | 3.08B | 34.53% |
| Dec 31, 2009 | 2.29B | -6.90% |
| Dec 31, 2008 | 2.46B | 8.36% |
| Dec 31, 2007 | 2.27B | -21.65% |
| Dec 29, 2006 | 2.90B | -1.39% |
| Dec 30, 2005 | 2.94B | -2.10% |
| Dec 31, 2004 | 3.00B | 2.62% |
| Dec 31, 2003 | 2.93B | 13.22% |
| Dec 31, 2002 | 2.58B | -11.53% |
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Market Capitalization
Market capitalization, also called net worth, is the total value of all of a company's outstanding shares. It is calculated by multiplying the stock price by the number of shares outstanding.
Formula: Market Cap = Stock Price * Shares Outstanding
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