Market capitalization of Atmos Energy (ATO)

Market cap: HK$238.57 Billion

As of March 2026 Atmos Energy has a market cap of HK$238.57 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 2026

End of year Market Cap

Year	Marketcap	Change
2026	HK$238.57 B	12.75%
2025	HK$211.59 B	25.83%
2024	HK$168.15 B	25.1%
2023	HK$134.41 B	8.86%
2022	HK$123.47 B	13.9%
2021	HK$108.41 B	16.27%
2020	HK$93.24 B	-12.46%
2019	HK$106.51 B	25.49%
2018	HK$84.87 B	13.99%
2017	HK$74.45 B	23.22%
2016	HK$60.42 B	21.16%
2015	HK$49.87 B	14.39%
2014	HK$43.60 B	36.11%
2013	HK$32.03 B	30.01%
2012	HK$24.64 B	5.44%
2011	HK$23.36 B	6.19%
2010	HK$22.00 B	3.84%
2009	HK$21.19 B	26.98%
2008	HK$16.69 B	-15.09%
2007	HK$19.65 B	-10.51%
2006	HK$21.96 B	33.94%
2005	HK$16.39 B	-2.65%
2004	HK$16.84 B	72.67%
2003	HK$9.75 B	18.25%
2002	HK$8.25 B	21.92%
2001	HK$6.76 B	-8.45%
2000	HK$7.39 B	47.64%
1999	HK$5.00 B	-34.63%
1998	HK$7.65 B	9.45%
1997	HK$6.99 B	135.1%
1996	HK$2.97 B

End of Day market cap according to different sources

On Mar 11th, 2026 the market cap of Atmos Energy was reported to be:

HK$238.59 Billion

by Nasdaq

HK$238.57 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
CenterPoint Energy CNP	HK$219.83 B	-7.85%	🇺🇸 USA
NiSource NI	HK$173.21 B	-27.40%	🇺🇸 USA
Oneok OKE	HK$422.60 B	77.14%	🇺🇸 USA
RGC Resources RGCO	HK$1.80 B	-99.24%	🇺🇸 USA
Chesapeake Utilities CPK	HK$24.08 B	-89.91%	🇺🇸 USA
ONE Gas OGS	HK$42.25 B	-82.29%	🇺🇸 USA
National Fuel Gas NFG	HK$68.71 B	-71.20%	🇺🇸 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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