Ameren (AEE) - Market capitalization

Market cap: NZ$56.18 Billion

As of June 2026 Ameren has a market cap of NZ$56.18 Billion. This makes Ameren the world's 780th 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 Ameren from 1997 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	NZ$56.18 B	20.52%
2025	NZ$46.61 B	9.29%
2024	NZ$42.65 B	41.81%
2023	NZ$30.07 B	-16.93%
2022	NZ$36.20 B	7.86%
2021	NZ$33.56 B	25.52%
2020	NZ$26.74 B	-4.74%
2019	NZ$28.07 B	18.08%
2018	NZ$23.77 B	17.98%
2017	NZ$20.15 B	9.67%
2016	NZ$18.37 B	19.92%
2015	NZ$15.32 B	7.28%
2014	NZ$14.28 B	33.8%
2013	NZ$10.67 B	17.83%
2012	NZ$9.05 B	-11.9%
2011	NZ$10.28 B	17.06%
2010	NZ$8.78 B	-3.85%
2009	NZ$9.13 B	-24.92%
2008	NZ$12.16 B	-17.46%
2007	NZ$14.74 B	-6.44%
2006	NZ$15.75 B	2.68%
2005	NZ$15.34 B	11.88%
2004	NZ$13.71 B	18.99%
2003	NZ$11.52 B	-5.82%
2002	NZ$12.24 B	-12.96%
2001	NZ$14.06 B	-1.94%
2000	NZ$14.34 B	66.77%
1999	NZ$8.59 B	-22.63%
1998	NZ$11.11 B	8.68%
1997	NZ$10.22 B

End of Day market cap according to different sources

On Jun 28th, 2026 the market cap of Ameren was reported to be:

NZ$57.96 Billion

by Nasdaq

NZ$57.96 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Alliant Energy LNT	NZ$35.10 B	-37.52%	🇺🇸 USA
CMS Energy CMS	NZ$42.47 B	-24.40%	🇺🇸 USA
Dominion Energy D	NZ$107.31 B	91.00%	🇺🇸 USA
WEC Energy Group WEC	NZ$68.15 B	21.31%	🇺🇸 USA
Duke Energy DUK	NZ$176.60 B	214.34%	🇺🇸 USA
Xcel Energy XEL	NZ$90.18 B	60.52%	🇺🇸 USA
Otter Tail OTTR	NZ$6.58 B	-88.28%	🇺🇸 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 Ameren (AEE)

Market cap: NZ$56.18 Billion