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Market Cap for Arthur J. Gallagher & (AJG)

According to Arthur J. Gallagher &'s latest reported financial statements, the company's latest reported market cap is $67.37B USD. Market capitalization is the total dollar value of all outstanding shares — shares outstanding × stock price — and the standard measure of a company's equity value. On this page, historical market cap snaps filing-period share counts to closing prices on or before each statement date (not intraday tick data).

Headline figure above is from the reporting period ending (reported ). Chart and table below cover the full reported history back to .

Latest period

$67.37B

YoY change

-18.2%

5Y CAGR

+9.4%

Peak year (2025)

$67.37B

Latest annual

$55.14B

Market Cap history chart for Arthur J. Gallagher & (AJG) from 1985 to 2026

Market Cap history table for Arthur J. Gallagher & (AJG) from 1985 to 2026

Fiscal yearPeriod endedReportedMarket CapYoY
2026$55.14B-18.2%
2025$67.37B+6.0%
2024$63.55B+28.9%
2023$49.32B+21.8%
2022$40.48B+15.1%
2021$35.17B+45.8%
2020$24.12B+33.3%
2019$18.10B+31.9%
2018$13.72B+19.1%
2017$11.52B+24.3%
2016$9.27B+30.7%
2015$7.09B-2.4%
2014$7.26B+18.6%
2013$6.12B+44.3%
2012$4.24B+12.8%
2011$3.76B+19.3%
2010$3.15B+39.2%
2009$2.27B-7.3%
2008$2.44B+4.0%
2007$2.35B-19.0%
2006$2.90B-2.3%
2005$2.97B-3.4%
2004$3.07B+1.5%
2003$3.03B+11.8%
2002$2.71B-12.9%
2001$3.11B+9.4%
2000$2.84B+83.5%
1999$1.55B+84.3%
1998$840.61M+35.6%
1997$619.92M+15.8%
1996$535.23M-17.3%
1995$647.12M+27.2%
1994$508.86M-23.5%
1993$665.09M+44.3%
1992$460.86M+40.3%
1991$328.41M+11.8%
1990$293.82M-6.3%
1989$313.44M+32.8%
1988$236.04M+24.2%
1987$190.02M-34.2%
1986$288.64M+35.4%
1985$213.20M

Market Cap values are taken from Arthur J. Gallagher &'s reported income statements (10-Q quarterly and 10-K annual filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the date the filing was reported; YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.

Analysis

As of the 2026 fiscal year, Arthur J. Gallagher & (AJG) reported market cap of $55.14B – declined 18.2% year-over-year.

Across 2021–2026 (5 years), Arthur J. Gallagher & market cap produced a CAGR of +9.4% – with the latest reading among the more recent periods of the dataset.

Between 2025 and 2026, Arthur J. Gallagher & market cap declined 18.2%, falling from $67.37B to $55.14B.

2025 marks the peak market cap at $67.37B, with the historical low of $190.02M recorded in 1987.

Arthur J. Gallagher & (AJG) sits 9th of 8 Financial Services peers we track on this metric, against a peer median of $413.64B.

Arthur J. Gallagher & Market Cap by Year

Arthur J. Gallagher & Market Cap 2026: $55.14B

Arthur J. Gallagher & market cap in 2026 was $55.14B, declined 18.2% below 2025.

Arthur J. Gallagher & Market Cap 2025: $67.37B

Arthur J. Gallagher & market cap in 2025 was $67.37B, grew 6.0% from 2024. This figure represents the highest annual value in the available history.

Arthur J. Gallagher & Market Cap 2024: $63.55B

Arthur J. Gallagher & market cap in 2024 was $63.55B, grew 28.9% from 2023.

Arthur J. Gallagher & Market Cap 2023: $49.32B

Arthur J. Gallagher & market cap in 2023 was $49.32B, grew 21.8% from 2022.

Arthur J. Gallagher & Market Cap 2022: $40.48B

Arthur J. Gallagher & market cap in 2022 was $40.48B.

See more financial history for Arthur J. Gallagher & (AJG).

Sector peers — Market Cap

Companies in the same sector as Arthur J. Gallagher &, ranked by their latest market cap.

CompanyMarket CapSector
Berkshire Hathaway Inc. (BRK-B)$1.03TFinancial Services
JPMorgan Chase & Co. (JPM)$839.99BFinancial Services
Visa Inc. (V)$596.34BFinancial Services
Mastercard Incorporated (MA)$449.35BFinancial Services
Bank of America Corporation (BAC)$377.92BFinancial Services
Morgan Stanley (MS)$302.29BFinancial Services
The Goldman Sachs Group, Inc. (GS)$274.96BFinancial Services
Wells Fargo & Company (WFC)$249.74BFinancial Services

Frequently asked questions

What is Arthur J. Gallagher &'s market cap?

Latest reported market cap for Arthur J. Gallagher & (AJG) is $67.37B (period ending December 31, 2025).

How has Arthur J. Gallagher & market cap changed year-over-year?

Arthur J. Gallagher & (AJG) market cap changed -18.2% year-over-year on the latest annual filing.

What is the long-term growth rate of Arthur J. Gallagher & market cap?

Arthur J. Gallagher & (AJG) market cap compound annual growth rate is +9.4% over the most recent 5 years available.

When did Arthur J. Gallagher & market cap hit its highest annual value?

Arthur J. Gallagher & market cap reached its highest annual value of $67.37B in 2025.

What was Arthur J. Gallagher & market cap in 2025?

Arthur J. Gallagher & (AJG) market cap in 2025 was $67.37B.

What was Arthur J. Gallagher & market cap in 2026?

Arthur J. Gallagher & (AJG) market cap in 2026 was $55.14B.

Metrics overview

Pick a metric for charts, filings, and peers — each row shows the latest TTM or annual value with year-over-year change.