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 6.2× larger than Talen Energy by market cap; year to date, Southern Company leads (+9.6% vs +2.9%).
Side by side
| SO | TLN | |
|---|---|---|
| Market cap | $108B | $17.5B |
| Price | $95.61 | $385.80 |
| Today | +0.5% | +0.4% |
| Return YTD | +9.6% | +2.9% |
| Return 1Y | +2.5% | +44.2% |
| P/E | 24.7 | — |
| P/S | 3.7 | 5.3 |
| P/B | 2.9 | 16.3 |
Data as of 2026-07-11 · updates daily after U.S. close
The two companies
Southern CompanySO
One of the largest US electric and gas utilities, with growing nuclear power (Vogtle).
Full SO profile →Talen EnergyTLN
Independent power producer with nuclear capacity that supplies data centers directly.
Full TLN profile →More comparisons in Utilities & power producers
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 →