Atmos Energy (ATO) - Market capitalization

Market cap: NZ$42.13 Billion

As of April 2025 Atmos Energy has a market cap of NZ$42.13 Billion. This makes Atmos Energy the world's 773th 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	NZ$42.13 B	9.71%
2024	NZ$38.40 B	41.12%
2023	NZ$27.21 B	9.33%
2022	NZ$24.89 B	22.29%
2021	NZ$20.35 B	22.11%
2020	NZ$16.66 B	-17.91%
2019	NZ$20.30 B	25.68%
2018	NZ$16.15 B	20.41%
2017	NZ$13.41 B	19.28%
2016	NZ$11.25 B	19.65%
2015	NZ$9.40 B	31.04%
2014	NZ$7.17 B	42.71%
2013	NZ$5.02 B	30.1%
2012	NZ$3.86 B	0.24%
2011	NZ$3.85 B	5.17%
2010	NZ$3.66 B	-2.6%
2009	NZ$3.76 B	1.11%
2008	NZ$3.72 B	13.09%
2007	NZ$3.29 B	-17.9%
2006	NZ$4.00 B	29.54%
2005	NZ$3.09 B	1.86%
2004	NZ$3.03 B	56.89%
2003	NZ$1.93 B	-4.22%
2002	NZ$2.02 B	-3.27%
2001	NZ$2.08 B	-2.28%
2000	NZ$2.13 B	73.43%
1999	NZ$1.23 B	-34.26%
1998	NZ$1.87 B	20.55%
1997	NZ$1.55 B	185.69%
1996	NZ$0.54 B

End of Day market cap according to different sources

On Apr 17th, 2025 the market cap of Atmos Energy was reported to be:

NZ$42.14 Billion

by Nasdaq

NZ$42.13 Billion

by CompaniesMarketCap

NZ$42.13 Billion

by Yahoo Finance

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
National Fuel Gas NFG	NZ$12.04 B	-71.41%	🇺🇸 USA
ONE Gas OGS	NZ$7.82 B	-81.43%	🇺🇸 USA
NiSource NI	NZ$31.15 B	-26.06%	🇺🇸 USA
Chesapeake Utilities CPK	NZ$5.25 B	-87.53%	🇺🇸 USA
RGC Resources RGCO	NZ$0.36 B	-99.13%	🇺🇸 USA
Oneok OKE	NZ$90.75 B	115.39%	🇺🇸 USA
CenterPoint Energy CNP	NZ$40.87 B	-3.00%	🇺🇸 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: NZ$42.13 Billion