As of March 2026 Atmos Energy has a market cap of โฌ26.13 Billion. This makes Atmos Energy the world's 795th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.
On Mar 10th, 2026 the market cap of Atmos Energy was reported to be: