DUK vs SO: Valuation Comparison 2026
Side-by-side fundamentals for Duke Energy Corporation (DUK) and The Southern Company (SO) — market cap, PE, PEG and sector. All figures from SEC filings and market data.
| Metric | DUK | SO |
|---|---|---|
| Sector | Utilities | Utilities |
| Industry | Regulated Electric | Regulated Electric |
| Current Price | $127.11 | $95.91 |
| Market Cap | $99.09B | $108.12B |
| PE Ratio | 19.47 | 24.34 |
| PEG Ratio | 0.66 | 3.55 |
| PEG Verdict | Potentially Undervalued | Potentially Overvalued |