Atmos Energy Corporation (ATO) Valuation
Historical valuation analysis based on 1280 data points (2021-09-13 to 2026-10-16)
Atmos Energy is the largest publicly traded, fully regulated, pure-play natural gas utility in the United States, serving more than 3.3 million customers in Texas, Colorado, Kansas, Kentucky, Louis...
Atmos Energy Corporation (ATO) currently trades at a P/E ratio of 20.16 (historical range: 16.77–64.57, median: 21.86), placing it at the 26th percentile — below its historical average, P/S ratio of 5.75 (range: 3.32–6.55, 83th percentile — expensive relative to its history), EV/EBITDA of 20.59 (range: 18.42–27.10, 11th percentile).
Over the historical period (2021-09-13 to 2026-10-16), Atmos Energy Corporation's P/E ratio has contracted by 29% over the observed period (from an average of 30.0 to 21.2).
Atmos Energy Corporation trades below its historical valuation range, with most metrics below their median levels.
Historical Valuation Metrics
| Metric | Current | Median | %ile | Assessment |
|---|---|---|---|---|
| P/E Ratio | 20.16 | 21.86 | 26th | below its historical average |
| P/S Ratio | 5.75 | 4.83 | 83th | expensive relative to its history |
| EV/EBITDA | 20.59 | 23.01 | 11th | cheap relative to its history |
| FCF Yield | 4.13% | 4.18% | 40th | above its historical average |
Atmos Energy Corporation (ATO) Valuation & P/E History
Atmos Energy Corporation (ATO) is a US-listed stock operating in the Utilities sector, specifically the Natural Gas Distribution industry currently trading at $167.34 with a market capitalization of $28.3 billion. This page provides historical valuation analysis for ATO based on 1280 data points covering 2021-09-13 to 2026-10-16. The P/E ratio of 20.16 is below the historical median of 21.86, placing ATO at the 26th percentile of its valuation range. The P/S ratio of 5.75 compares to a median of 4.83.
ATO Valuation Metrics & Historical Range
The valuation table above shows Atmos Energy Corporation's current and historical valuation multiples, including P/E ratio, P/S ratio, EV/EBITDA, FCF yield, and dividend yield. Each metric is compared to its own historical range to determine whether ATO is currently trading above or below its typical valuation levels.
- P/E ratio: Price-to-earnings measures how much investors pay per dollar of earnings. A P/E above the historical median suggests ATO is expensively valued; below the median suggests it is cheap.
- P/S ratio: Price-to-sales is useful for companies with volatile or negative earnings. Lower P/S relative to history may indicate value.
- EV/EBITDA: Enterprise value to EBITDA adjusts for debt and cash, providing a capital-structure-neutral valuation measure for Atmos Energy Corporation.
- FCF yield: Free cash flow yield shows the cash return relative to market price. Higher yields may indicate undervaluation.
Is ATO Overvalued or Undervalued?
Atmos Energy Corporation trades below its historical valuation range, with most metrics below their median levels. The overall valuation percentile of 40 combines P/E, P/S, and EV/EBITDA percentiles into a single measure of how expensive ATO is relative to its own history. A percentile below 25 suggests the stock may be undervalued, while a percentile above 75 suggests it may be overvalued.
However, valuation is only one factor in investment decisions. A stock can remain "overvalued" for years if growth accelerates, or "undervalued" if the business deteriorates. Always combine valuation analysis with financial statement analysis and the full ATO analysis page for a complete picture.
Valuation data is computed from historical price and fundamental data via Polygon.io and Finnhub.ATO trades on NYSE/NASDAQ. This page is for informational purposes only and is not financial advice.