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 | $66.9B | $54.3B |
| Price | $122.81 | $61.64 |
| Today | +0.4% | −0.2% |
| Return YTD | +5.9% | +5.0% |
| Return 1Y | +3.3% | +1.1% |
| Since June 26, 2026 | −11.4% | −11.2% |
| P/E | 21.3 | 21.4 |
| P/S | 3.0 | 3.1 |
| P/B | 2.1 | 1.9 |
Data as of 2026-10-09 · updates daily after U.S. close
Since June 26, 2026: the change in the closing price, from the daily closes Sectivia records itself since that date.
The two companies
American Electric PowerAEP
Regulated transmission and distribution wires across 11 states, one of the largest such networks in the US.
Full AEP profile →Dominion EnergyD
Electricity and gas in the eastern US, with a large offshore wind project off Virginia attached.
Full D profile →More AEP & D comparisons
Other head-to-heads in the Utilities & power producers segment.
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 →