Atmos Energy (ATO) - Market capitalization

Market cap: A$39.17 Billion

As of March 2025 Atmos Energy has a market cap of A$39.17 Billion. This makes Atmos Energy the world's 824th 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	A$39.17 B	12.51%
2024	A$34.82 B	37.85%
2023	A$25.26 B	8.78%
2022	A$23.22 B	21.1%
2021	A$19.17 B	22.6%
2020	A$15.64 B	-19.92%
2019	A$19.53 B	26.97%
2018	A$15.38 B	26.03%
2017	A$12.20 B	12.92%
2016	A$10.81 B	22.39%
2015	A$8.83 B	28.6%
2014	A$6.86 B	48.31%
2013	A$4.63 B	51.41%
2012	A$3.05 B	4.25%
2011	A$2.93 B	5.4%
2010	A$2.78 B	-8.5%
2009	A$3.04 B	-0.61%
2008	A$3.06 B	6.17%
2007	A$2.88 B	-19.51%
2006	A$3.58 B	23.94%
2005	A$2.89 B	3.19%
2004	A$2.80 B	65.42%
2003	A$1.69 B	-9.82%
2002	A$1.87 B	10.43%
2001	A$1.70 B	0.32%
2000	A$1.69 B	72.85%
1999	A$0.98 B	-39.26%
1998	A$1.61 B	16.49%
1997	A$1.38 B	186.12%
1996	A$0.48 B

End of Day market cap according to different sources

On Mar 3rd, 2025 the market cap of Atmos Energy was reported to be:

A$39.17 Billion

by Yahoo Finance

A$39.17 Billion

by CompaniesMarketCap

A$39.19 Billion

by Nasdaq

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
National Fuel Gas NFG	A$10.96 B	-72.02%	🇺🇸 USA
ONE Gas OGS	A$7.31 B	-81.33%	🇺🇸 USA
NiSource NI	A$31.12 B	-20.54%	🇺🇸 USA
Chesapeake Utilities CPK	A$4.75 B	-87.88%	🇺🇸 USA
RGC Resources RGCO	A$0.33 B	-99.15%	🇺🇸 USA
Oneok OKE	A$100.70 B	157.03%	🇺🇸 USA
CenterPoint Energy CNP	A$36.19 B	-7.61%	🇺🇸 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: A$39.17 Billion