Arthur J. Gallagher & Co. (AJG) - Market capitalization

Market cap: NZ$144.40 Billion

As of February 2025 Arthur J. Gallagher & Co. has a market cap of NZ$144.40 Billion. This makes Arthur J. Gallagher & Co. the world's 228th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.

Market cap history of Arthur J. Gallagher & Co. from 1996 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	NZ$144.40 B	13.78%
2024	NZ$126.91 B	65.31%
2023	NZ$76.77 B	22.63%
2022	NZ$62.61 B	20.92%
2021	NZ$51.78 B	57.03%
2020	NZ$32.97 B	23.98%
2019	NZ$26.59 B	31.56%
2018	NZ$20.21 B	25.5%
2017	NZ$16.10 B	20.57%
2016	NZ$13.36 B	26.26%
2015	NZ$10.58 B	6.99%
2014	NZ$9.89 B	29.63%
2013	NZ$7.62 B	44.22%
2012	NZ$5.29 B	9.38%
2011	NZ$4.83 B	18.37%
2010	NZ$4.08 B	28.63%
2009	NZ$3.17 B	-26.21%
2008	NZ$4.30 B	48.1%
2007	NZ$2.90 B	-29.54%
2006	NZ$4.12 B	-4.61%
2005	NZ$4.32 B	3.07%
2004	NZ$4.19 B	-6.72%
2003	NZ$4.49 B	-9.51%
2002	NZ$4.97 B	-29.68%
2001	NZ$7.06 B	23.87%
2000	NZ$5.70 B	150.05%
1999	NZ$2.28 B	54.47%
1998	NZ$1.47 B	50.05%
1997	NZ$0.98 B	37.73%
1996	NZ$0.71 B

End of Day market cap according to different sources

On Feb 21st, 2025 the market cap of Arthur J. Gallagher & Co. was reported to be:

NZ$144.40 Billion

by Yahoo Finance

NZ$144.40 Billion

by CompaniesMarketCap

NZ$124.42 Billion

by Nasdaq

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Aon AON	NZ$146.53 B	1.48%	🇬🇧 UK
Marsh & McLennan Companies MMC	NZ$196.72 B	36.23%	🇺🇸 USA
Brown & Brown BRO	NZ$55.62 B	-61.48%	🇺🇸 USA

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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Market capitalization of Arthur J. Gallagher & Co. (AJG)

Market cap: NZ$144.40 Billion