American Electric Powervs.Duke Energy
AEP vs DUK · 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 is about 1.3× larger than American Electric Power by market cap; year to date, American Electric Power leads (+17.4% vs +7.1%).
Side by side
| AEP | DUK | |
|---|---|---|
| Market cap | $73.6B | $97.8B |
| Price | $135.43 | $125.48 |
| Today | +1.2% | +0.2% |
| Return YTD | +17.4% | +7.1% |
| Return 1Y | +27.7% | +6.2% |
| P/E | 20.1 | 19.0 |
| P/S | 3.4 | 2.9 |
| P/B | 2.3 | 1.8 |
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 →Duke EnergyDUK
Large US utility with a significant nuclear fleet and growing demand from electrification and data centres.
Full DUK profile →More comparisons in Utilities & power producers
See where AEP and DUK sit in the full Energy, grid & critical infrastructure map — every segment from suppliers to end markets.Open the Energy value chain →