Market capitalization of American International Group (AIG)

Market cap: £30.31 Billion

As of February 2026 American International Group has a market cap of £30.31 Billion. This makes American International Group the world's 585th 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 American International Group from 1996 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	£30.31 B	-14.79%
2025	£35.57 B	-1.96%
2024	£36.28 B	-2.81%
2023	£37.33 B	-3.87%
2022	£38.83 B	11.04%
2021	£34.97 B	46.16%
2020	£23.92 B	-29.73%
2019	£34.05 B	26.57%
2018	£26.90 B	-32.11%
2017	£39.62 B	-27.11%
2016	£54.36 B	8.89%
2015	£49.92 B	0.86%
2014	£49.49 B	9.24%
2013	£45.31 B	40.53%
2012	£32.24 B	13.74%
2011	£28.34 B	440.71%
2010	£5.24 B	109.51%
2009	£2.50 B	-13.15%
2008	£2.88 B	-96.12%
2007	£74.23 B	-22.33%
2006	£95.57 B	-6.97%
2005	£102.73 B	15.68%
2004	£88.81 B	-8.11%
2003	£96.64 B	2.65%
2002	£94.15 B	-34.26%
2001	£143.22 B	-7.02%
2000	£154.04 B	48.61%
1999	£103.66 B	69.94%
1998	£60.99 B	31.72%
1997	£46.30 B	56.04%
1996	£29.67 B

End of Day market cap according to different sources

On Jan 31st, 2026 the market cap of American International Group was reported to be:

£29.52 Billion

by Nasdaq

£30.31 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
White Mountains Insurance Group WTM	£3.80 B	-87.46%	🇧🇲 Bermuda
Safety Insurance SAFT	£0.85 B	-97.17%	🇺🇸 USA
American Financial Group AFG	£7.93 B	-73.81%	🇺🇸 USA
Prudential PUK	£30.44 B	0.44%	🇬🇧 UK
Arch Capital ACGL	£26.19 B	-13.60%	🇧🇲 Bermuda
Horace Mann Educators HMN	£1.33 B	-95.61%	🇺🇸 USA
AEGON AEG	£8.66 B	-71.40%	🇳🇱 Netherlands

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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