Constellation Energyvs.Talen Energy
CEG vs TLN · 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 5.7× larger than Talen Energy by market cap; year to date, Talen Energy leads (−18.5% vs −22.6%).
Side by side
| CEG | TLN | |
|---|---|---|
| Market cap | $98.7B | $17.2B |
| Price | $278.42 | $307.67 |
| Today | +1.8% | +0.7% |
| Return YTD | −22.6% | −18.5% |
| Return 1Y | −11.8% | −14.2% |
| P/E | 28.5 | — |
| P/S | 3.2 | 5.0 |
| P/B | 3.1 | 10.6 |
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 →Talen EnergyTLN
Independent power producer whose Susquehanna nuclear plant sells directly to data centers.
Full TLN profile →More CEG & TLN comparisons
Other head-to-heads in the Utilities & power producers segment.
See where CEG and TLN sit in the full Energy, grid & critical infrastructure map: every segment from suppliers to end markets.Open the Energy value chain →