Constellation Energyvs.NRG Energy
CEG 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.
Constellation Energy is about 3.0× larger than NRG Energy by market cap; Constellation Energy trades at the lower P/E (23.8 vs 124.0); year to date, NRG Energy leads (−11.8% vs −28.8%).
Side by side
| CEG | NRG | |
|---|---|---|
| Market cap | $90.3B | $29.6B |
| Price | $251.38 | $140.42 |
| Today | +0.3% | −0.0% |
| Return YTD | −28.8% | −11.8% |
| Return 1Y | −19.8% | −7.2% |
| P/E | 23.8 | 124.0 |
| P/S | 3.0 | 0.9 |
| P/B | 2.7 | 6.1 |
Data as of 2026-07-11 · updates daily after U.S. close
The two companies
Constellation EnergyCEG
The largest US nuclear power producer — delivering CO2-free baseload power, including via long-term agreements with data centres (Three Mile Island restart for Microsoft).
Full CEG 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 →