Market capitalization of Atmos Energy (ATO)

Market cap: ₹2.675 Trillion

As of February 2026 Atmos Energy has a market cap of ₹2.675 Trillion. This makes Atmos Energy the world's 839th 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 2026

End of year Market Cap

Year	Marketcap	Change
2026	₹2.675 T	9.59%
2025	₹2.441 T	31.38%
2024	₹1.858 T	29.69%
2023	₹1.432 T	9.56%
2022	₹1.307 T	26.37%
2021	₹1.034 T	17.65%
2020	₹879.63 B	-9.81%
2019	₹975.26 B	28.69%
2018	₹757.84 B	24.54%
2017	₹608.51 B	14.91%
2016	₹529.55 B	23.83%
2015	₹427.64 B	20.03%
2014	₹356.28 B	39.59%
2013	₹255.23 B	46.64%
2012	₹174.05 B	9.36%
2011	₹159.16 B	25.6%
2010	₹126.71 B	-0.09%
2009	₹126.82 B	22.17%
2008	₹103.81 B	4.93%
2007	₹98.93 B	-20.9%
2006	₹125.08 B	31.42%
2005	₹95.18 B	1.39%
2004	₹93.87 B	63.82%
2003	₹57.30 B	12.95%
2002	₹50.73 B	21.16%
2001	₹41.87 B	-5.33%
2000	₹44.23 B	57.89%
1999	₹28.01 B	-33.35%
1998	₹42.03 B	18.45%
1997	₹35.48 B	156.52%
1996	₹13.83 B

End of Day market cap according to different sources

On Feb 18th, 2026 the market cap of Atmos Energy was reported to be:

₹2.676 Trillion

by Nasdaq

₹2.675 Trillion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
CenterPoint Energy CNP	₹2.485 T	-7.10%	🇺🇸 USA
NiSource NI	₹1.946 T	-27.25%	🇺🇸 USA
Oneok OKE	₹4.962 T	85.48%	🇺🇸 USA
RGC Resources RGCO	₹19.88 B	-99.26%	🇺🇸 USA
Chesapeake Utilities CPK	₹280.78 B	-89.50%	🇺🇸 USA
ONE Gas OGS	₹457.50 B	-82.90%	🇺🇸 USA
National Fuel Gas NFG	₹744.18 B	-72.18%	🇺🇸 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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