Atmos Energy
Market cap
$26.905 B
$159.21 -0.33%
Close of 8 Oct 2026
As of 8 Oct 2026, Atmos Energy (ATO) has a market capitalization of $26.9B. Market cap measures the value of outstanding equity at market prices; company totals combine applicable share classes. Prices and market caps come from Nasdaq, with financial fundamentals from SEC filings. See sources and calculation details.
Revenue
$4.70B
#704 by revenue
Earnings
$1.20B
#336 by earnings
Shares outstanding
168,988,553
Latest filing cover page
P/E ratio
22.4
Cap ÷ net income
Oil/Gas Transmission, ranked by market cap
All 14 →- #2Venture GlobalVG$32.6B
- #3Cheniere Energy PartnersCQP$30.7B
- #4Atmos EnergyATO$26.9B
- #5UltraparUGP$8.61B
- #6National Fuel GasNFG$7.38B
What if Atmos Energy were worth as much as…
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Share counts and financials for Atmos Energy are taken from its own SEC filings via EDGAR: public record, not an estimate. Market cap is shares outstanding multiplied by the latest close. Last updated 9 Oct 2026. Read the methodology.