American Electric Powervs.NRG Energy
AEP vs NRG · 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 2.5× larger than NRG Energy by market cap; American Electric Power trades at the lower P/E (20.1 vs 124.0); year to date, American Electric Power leads (+17.4% vs −11.8%).
Side by side
| AEP | NRG | |
|---|---|---|
| Market cap | $73.6B | $29.6B |
| Price | $135.43 | $140.42 |
| Today | +1.2% | −0.0% |
| Return YTD | +17.4% | −11.8% |
| Return 1Y | +27.7% | −7.2% |
| P/E | 20.1 | 124.0 |
| P/S | 3.4 | 0.9 |
| P/B | 2.3 | 6.1 |
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 →NRG EnergyNRG
Large U.S. power company with generation plants and millions of electricity and gas customers — positioned for rising power demand and data centers.
Full NRG profile →More comparisons in Utilities & power producers
See where AEP and NRG sit in the full Energy, grid & critical infrastructure map — every segment from suppliers to end markets.Open the Energy value chain →