Constellation Energyvs.Exelon
CEG vs EXC · 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 1.9× larger than Exelon by market cap; Exelon trades at the lower P/E (17.2 vs 23.8); year to date, Exelon leads (+7.4% vs −28.8%).
Side by side
| CEG | EXC | |
|---|---|---|
| Market cap | $90.3B | $47.9B |
| Price | $251.38 | $46.80 |
| Today | +0.3% | +0.9% |
| Return YTD | −28.8% | +7.4% |
| Return 1Y | −19.8% | +7.3% |
| P/E | 23.8 | 17.2 |
| P/S | 3.0 | 1.9 |
| P/B | 2.7 | 1.6 |
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 →ExelonEXC
Regulated electricity and gas distribution utilities across several major US cities.
Full EXC profile →More comparisons in Utilities & power producers
See where CEG and EXC sit in the full Energy, grid & critical infrastructure map — every segment from suppliers to end markets.Open the Energy value chain →