Atmos Energy (ATO) - Market capitalization

Market cap: €22.20 Billion

As of April 2025 Atmos Energy has a market cap of €22.20 Billion. This makes Atmos Energy the world's 782th 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 Atmos Energy from 1996 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	€22.20 B	6.69%
2024	€20.81 B	33.69%
2023	€15.56 B	5.67%
2022	€14.73 B	20.01%
2021	€12.27 B	25.55%
2020	€9.77 B	-19.9%
2019	€12.20 B	28.86%
2018	€9.47 B	19.28%
2017	€7.94 B	7.21%
2016	€7.40 B	25.88%
2015	€5.88 B	27.33%
2014	€4.62 B	54.51%
2013	€2.99 B	24.48%
2012	€2.40 B	3.73%
2011	€2.31 B	8.97%
2010	€2.12 B	11.44%
2009	€1.90 B	23.49%
2008	€1.54 B	-10.52%
2007	€1.72 B	-19.33%
2006	€2.14 B	19.87%
2005	€1.78 B	11.73%
2004	€1.59 B	59.84%
2003	€0.99 B	-1.22%
2002	€1.01 B	2.99%
2001	€0.98 B	-2.32%
2000	€1.00 B	57.09%
1999	€0.64 B	-23.12%
1998	€0.83 B	9.48%
1997	€0.76 B	134.65%
1996	€0.32 B

End of Day market cap according to different sources

On Apr 23rd, 2025 the market cap of Atmos Energy was reported to be:

€22.26 Billion

by Nasdaq

€22.25 Billion

by CompaniesMarketCap

€22.25 Billion

by Yahoo Finance

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
National Fuel Gas NFG	€6.17 B	-72.21%	🇺🇸 USA
ONE Gas OGS	€4.12 B	-81.42%	🇺🇸 USA
NiSource NI	€16.33 B	-26.43%	🇺🇸 USA
Chesapeake Utilities CPK	€2.67 B	-87.93%	🇺🇸 USA
RGC Resources RGCO	€0.18 B	-99.15%	🇺🇸 USA
Oneok OKE	€47.19 B	112.54%	🇺🇸 USA
CenterPoint Energy CNP	€21.64 B	-2.53%	🇺🇸 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 Atmos Energy (ATO)

Market cap: €22.20 Billion