TotalMarketCap

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 →
  1. #2Venture GlobalVG$32.6B
  2. #3Cheniere Energy PartnersCQP$30.7B
  3. #4Atmos EnergyATO$26.9B
  4. #5UltraparUGP$8.61B
  5. #6National Fuel GasNFG$7.38B

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Where these numbers come from

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.