American Electric Powervs.Dominion Energy
AEP vs D · 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.
American Electric Power is about 1.2× larger than Dominion Energy by market cap.
Side by side
| AEP | D | |
|---|---|---|
| Market cap | $73.6B | $61.5B |
| Price | $135.43 | $70.08 |
| Today | +1.2% | +0.9% |
| Return YTD | +17.4% | +19.6% |
| Return 1Y | +27.7% | +20.5% |
| P/E | 20.1 | 20.8 |
| P/S | 3.4 | 3.6 |
| P/B | 2.3 | 2.1 |
Data as of 2026-07-11 · updates daily after U.S. close
The two companies
American Electric PowerAEP
One of the largest US electricity transmission networks, covering 11 states.
Full AEP profile →Dominion EnergyD
Eastern US utility with electricity, gas and a large offshore wind bet.
Full D profile →More comparisons in Utilities & power producers
See where AEP and D sit in the full Energy, grid & critical infrastructure map — every segment from suppliers to end markets.Open the Energy value chain →