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 3.9× larger than NRG Energy by market cap; year to date, Constellation Energy leads (−22.6% vs −29.8%).
Side by side
| CEG | NRG | |
|---|---|---|
| Market cap | $98.7B | $25.4B |
| Price | $278.42 | $113.61 |
| Today | +1.8% | +1.6% |
| Return YTD | −22.6% | −29.8% |
| Return 1Y | −11.8% | −23.0% |
| P/E | 28.5 | 30.0 |
| P/S | 3.2 | 0.8 |
| P/B | 3.1 | 5.2 |
Data as of 2026-08-26 · updates daily after U.S. close
The two companies
Constellation EnergyCEG
No US company generates more nuclear power. Its carbon-free baseload increasingly goes to data centre operators on long-term contracts, the clearest case being Microsoft's deal to restart Three Mile Island.
Full CEG profile →NRG EnergyNRG
Generation plants on one side, millions of retail electricity and gas customers on the other, plus the Vivint smart-home business. The fleet runs on gas, coal and solar, and it is positioned for the demand growth data centers are driving in Texas and beyond.
Full NRG profile →More CEG & NRG comparisons
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