Duke Energyvs.Southern Company
DUK vs SO · both in Utilities & power producers, part of the Energy, grid & critical infrastructure value chain: Electricity utilities and large power producers, from nuclear to renewable portfolios.
Duke Energy and Southern Company are similar in size by market cap; Duke Energy trades at the lower P/E (18.5 vs 22.9).
Side by side
| DUK | SO | |
|---|---|---|
| Market cap | $96.9B | $107B |
| Price | $121.59 | $89.97 |
| Today | −0.3% | −0.1% |
| Return YTD | +4.1% | +3.3% |
| Return 1Y | −1.9% | −4.6% |
| P/E | 18.5 | 22.9 |
| P/S | 2.9 | 3.7 |
| P/B | 1.8 | 2.7 |
Data as of 2026-08-26 · updates daily after U.S. close
The two companies
Duke EnergyDUK
A large US utility carrying a substantial nuclear fleet into a period of demand growth from electrification and data centres.
Full DUK profile →Southern CompanySO
Vogtle is adding nuclear output to what is already one of the biggest US electric and gas utilities.
Full SO profile →More DUK & SO comparisons
Other head-to-heads in the Utilities & power producers segment.
See where DUK and SO sit in the full Energy, grid & critical infrastructure map: every segment from suppliers to end markets.Open the Energy value chain →