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 (19.0 vs 24.7).
Side by side
| DUK | SO | |
|---|---|---|
| Market cap | $97.8B | $108B |
| Price | $125.48 | $95.61 |
| Today | +0.2% | +0.5% |
| Return YTD | +7.1% | +9.6% |
| Return 1Y | +6.2% | +2.5% |
| P/E | 19.0 | 24.7 |
| P/S | 2.9 | 3.7 |
| P/B | 1.8 | 2.9 |
Data as of 2026-07-11 · updates daily after U.S. close
The two companies
Duke EnergyDUK
Large US utility with a significant nuclear fleet and growing demand from electrification and data centres.
Full DUK profile →Southern CompanySO
One of the largest US electric and gas utilities, with growing nuclear power (Vogtle).
Full SO profile →More comparisons in Utilities & power producers
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 →