ATO vs DUK
Atmos Energy (ATO) and Duke Energy (DUK) compared side by side. Duke Energy (DUK) is larger, with a market cap of $97.4B versus $29.1B for Atmos Energy, about 3.3 times the size. On trailing earnings, DUK is cheaper at 18.8x versus 20.5x for ATO.
Head to head
| Metric | ATO | DUK |
|---|---|---|
| Market cap | $29.1B | $97.4B |
| P/E (TTM) | 20.5x | 18.8x |
| Forward P/E | 19.1x | 17.4x |
| Revenue (TTM) | $4.9B | $32.8B |
| Revenue growth | 4.8% | 1.1% |
| Gross margin | 62.2% | 52.0% |
| Operating margin | 37.2% | 27.5% |
| Free cash flow | -$2.0B | -$4.3B |
| Dividend yield | 2.32% | 3.47% |
| 1-year return | +0.3% | +1.7% |
| 5-year return (annual) | +15.7% | +7.9% |
| Max drawdown | -52% | -72% |
| FI Handbook grade | C- | C- |
Highlighted: the stronger figure on metrics where higher or lower is clearly better.
Growth of $10,000 (5 years, price only)
ATO vs DUK FAQ
Which is bigger, ATO or DUK?
Duke Energy (DUK) is larger, with a market cap of $97.4B versus $29.1B for Atmos Energy, about 3.3 times the size.
Is ATO or DUK cheaper?
On trailing earnings, DUK is cheaper at 18.8x versus 20.5x for ATO. A lower P/E can reflect slower expected growth, so compare growth and margins too.
Which stock performed better over the past year, ATO or DUK?
DUK returned +1.7% over the past year including dividends, versus +0.3% for ATO, through October 23, 2026.
Which pays a higher dividend, ATO or DUK?
DUK yields 3.47% versus 2.32% for ATO.
Full pages: Atmos Energy · Duke Energy