Atmos Energy Corp. (ATO)
Atmos Energy Market Cap: 27.57B for Jan. 16, 2026
Market Cap Chart
Historical Data
Market Capitalization Definition
Market Capitalization measures the total value of a company based on their stock price multiplied by the shares outstanding. This metric is important because it gives you an idea of the size of a company, and how the size has changed over time. When studying companies from a relative basis, it would make sense to compare companies that have a similar market capitalization because factors like market share, economies of scale, and business models would also be similar.
Market Cap Range, Past 5 Years
Market Cap Benchmarks
| Spire Inc. | 4.932B |
| Sempra | 60.41B |
| Southwest Gas Holdings, Inc. | 6.227B |
| ONE Gas, Inc. | 4.723B |
| MDU Resources Group, Inc. | 4.221B |
Market Cap Related Metrics
| PE Ratio | 22.83 |
| PS Ratio | 5.843 |
| PEG Ratio | 2.492 |
| Price to Book Value | 2.034 |
| Price | 170.47 |
| Earnings Yield | 4.38% |
| PEGY Ratio | 2.024 |
| Operating PE Ratio | 17.61 |
| Normalized PE Ratio | 22.83 |