DUK vs SO
Duke Energy and Southern Company, both Utilities
Southern Company is the larger company at $105B against $97B. On trailing earnings DUK is the cheaper of the two at a P/E of 18.7 against 23.0, a gap that is only a bargain if the two are growing at similar rates. Over the past year DUK returned +0.7% against -2.1% for SO. Ryufin's sector-relative Smart Score puts DUK ahead, 6/10 against 4/10.
| Figure | DUK | SO |
|---|---|---|
| Last close | $122 | $89.76 |
| Market cap | $97B | $105B |
| Trailing P/Elower is cheaper for the same earnings, not automatically better | 18.7 | 23.0 |
| Dividend yield | 3.5% | 3.3% |
| 1-year return | +0.7% | -2.1% |
| 5-year return | +41% | +69% |
| Ryufin Smart Scoresector-relative, 1–10 | 6/10 | 4/10 |
Figures from SEC filings and end-of-day closes. Highlighting marks the higher or lower number, which is not the same as the better investment, a low P/E can be a warning and a high one can be deserved.
Duke Energy
Revenue of $9.2B in Q1 2026, net income $1.6B. Its largest reported line is Electric Utilitiesand Infrastructure, 94% of the disclosed total.
Southern Company
Revenue of $8.4B in Q1 2026, net income $1.3B. Its largest reported line is Retail Electric Commercial, 19% of the disclosed total.
Open these two in the interactive comparison to add more names, change the period or read the correlation.