Atmos Energy Corporation (ATO)

Atmos Energy Market Cap

Atmos Energy has a market cap or net worth of $29.41 billion as of July 10, 2026. Its market cap has increased by 21.24% in one year.

• Market Cap: 29.41B
• Enterprise Value: 38.91B
• 1-Year Change: 21.24%
• Ranking: #473
• Category: Large-Cap
• Stock Price: $176.20

Market Cap Chart

Since December 1, 1998, Atmos Energy's market cap has increased from $926.30M to $29.41B, an increase of 3,075.13%. That is a compound annual growth rate of 13.33%.

Market Cap History

Date	Market Cap	% Change
Jul 10, 2026	29.41B	8.51%
Dec 31, 2025	27.10B	25.24%
Dec 31, 2024	21.64B	25.75%
Dec 29, 2023	17.21B	8.99%
Dec 30, 2022	15.79B	13.81%
Dec 31, 2021	13.87B	15.49%
Dec 31, 2020	12.01B	-10.01%
Dec 31, 2019	13.35B	29.30%
Dec 31, 2018	10.32B	13.28%
Dec 29, 2017	9.11B	18.23%
Dec 30, 2016	7.71B	20.47%
Dec 31, 2015	6.40B	14.35%
Dec 31, 2014	5.60B	35.52%
Dec 31, 2013	4.13B	30.29%
Dec 31, 2012	3.17B	5.16%
Dec 30, 2011	3.01B	6.82%
Dec 31, 2010	2.82B	3.63%
Dec 31, 2009	2.72B	26.04%
Dec 31, 2008	2.16B	-14.17%
Dec 31, 2007	2.52B	-3.62%
Dec 29, 2006	2.61B	23.81%
Dec 30, 2005	2.11B	22.78%
Dec 31, 2004	1.72B	37.16%
Dec 31, 2003	1.25B	28.68%
Dec 31, 2002	973.20M	12.13%

View and export this data all the way back to 1998. Sign Up Today.

Data Source: Nasdaq Data Link Last updated: Jul 10, 2026

Market cap data is provided by Nasdaq Data Link. The current market cap updates continuously throughout the trading day, while the historical market cap is updated daily after market close.

Update frequency:

Daily

Last checked:

Jul 11, 2026

Data Sources Report a data error

Related Stocks

Company	Market Cap
NiSource	22.37B
UGI Corporation	7.73B
Southwest Gas Holdings	6.60B
New Jersey Resources	5.84B
Black Hills	5.58B
ONE Gas	4.95B
Brookfield Infrastructure	4.82B
Spire	4.76B