Atmos Energy Corporation (ATO)

NYSE: ATO · Real-Time Price · USD

187.13

+1.51 (0.81%)

At close: Apr 28, 2026, 4:00 PM EDT

187.10

-0.03 (-0.02%)

Pre-market: Apr 29, 2026, 8:46 AM EDT

Atmos Energy Market Cap

Atmos Energy has a market cap or net worth of $30.96 billion as of April 29, 2026. Its market cap has increased by 28.76% in one year.

Market Cap

30.96B

Enterprise Value

40.22B

1-Year Change

28.76%

Ranking

#452

Market Cap Chart

Since December 1, 1998, Atmos Energy's market cap has increased from $926.30M to $30.96B, an increase of 3,242.18%. That is a compound annual growth rate of 13.65%.

Market Cap History

Date	Market Cap	% Change
Apr 28, 2026	30.96B	14.22%
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%

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Market Capitalization

Market capitalization, also called net worth, is the total value of all of a company's outstanding shares. It is calculated by multiplying the stock price by the number of shares outstanding.

Formula: Market Cap = Stock Price * Shares Outstanding

Full Definition

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