Southern Companyvs.Talen Energy
SO 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.
Southern Company is about 5.5× larger than Talen Energy by market cap.
Side by side
| SO | TLN | |
|---|---|---|
| Market cap | $98.8B | $17.9B |
| Price | $86.17 | $378.57 |
| Today | +0.0% | +5.4% |
| Return YTD | −1.2% | −4.2% |
| Return 1Y | −10.4% | −19.4% |
| Since June 26, 2026 | −11.3% | −6.3% |
| P/E | 21.2 | — |
| P/S | 3.4 | 5.2 |
| P/B | 2.5 | 11.1 |
Data as of 2026-10-09 · updates daily after U.S. close
Since June 26, 2026: the change in the closing price, from the daily closes Sectivia records itself since that date.
The two companies
Southern CompanySO
Vogtle is adding nuclear output to what is already one of the biggest US electric and gas utilities.
Full SO profile →Talen EnergyTLN
Independent power producer whose Susquehanna nuclear plant sells directly to data centers.
Full TLN profile →More SO & TLN comparisons
Other head-to-heads in the Utilities & power producers segment.
See where SO and TLN sit in the full Energy, grid & critical infrastructure map: every segment from suppliers to end markets.Open the Energy value chain →