Atmos Energy Corporation (ATO)

Atmos Energy Market Cap

Atmos Energy has a market cap or net worth of $28.24 billion as of October 24, 2025. Its market cap has increased by 31.79% in one year.

• Market Cap: 28.24B
• Enterprise Value: 36.41B
• 1-Year Change: 31.79%
• Ranking: #461
• Category: Large-Cap
• Stock Price: $175.93

Market Cap Chart

Since December 1, 1998, Atmos Energy's market cap has increased from $926.30M to $28.24B, an increase of 2,948.79%. That is a compound annual growth rate of 13.54%.

Market Cap History

Date	Market Cap	% Change
Oct 24, 2025	28.24B	30.49%
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%
Dec 31, 2001	867.90M	11.25%

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

Related Stocks

Company	Market Cap
NextEra Energy	173.82B
Constellation Energy	121.59B
The Southern Company	105.47B
Duke Energy	99.05B
National Grid	75.98B
Vistra	68.26B
American Electric Power Company	62.03B
Sempra	60.54B