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ATMOS ENERGY CORP
ATO - CIK 0000731802
Market cap$28.59 B
Rank#480
SEC filings2,121
Market capitalization of ATMOS ENERGY CORP
As of 2026-05-29, ATMOS ENERGY CORP (ATO) has a market capitalization of $28.59 B, making it the #480 most valuable US-listed company.
Recent market cap readings
| Date | Market cap |
|---|---|
| 2026-05-29 | $28.56 B |
| 2026-05-28 | $29.42 B |
| 2026-05-26 | $29.76 B |
| 2026-05-25 | $29.68 B |
| 2026-05-24 | $29.68 B |
| 2026-05-22 | $29.68 B |
Readings accumulate daily as market data refreshes, combining SEC-reported share counts with live prices.
Market Cap of similar companies
Frequently asked questions
What is ATMOS ENERGY CORP's market cap?
As of 2026-05-29, ATMOS ENERGY CORP (ATO) has a market capitalization of $28.59 B, making it the #480 most valuable US-listed company.
Where does ATMOS ENERGY CORP rank by market cap?
ATMOS ENERGY CORP is the #480 largest US-listed company by market capitalization.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.