NRG Energyvs.Southern Company
NRG vs SO · 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 4.4× larger than NRG Energy by market cap; Southern Company trades at the lower P/E (21.2 vs 26.8); year to date, Southern Company leads (−1.2% vs −33.2%).
Side by side
| NRG | SO | |
|---|---|---|
| Market cap | $22.7B | $98.8B |
| Price | $107.97 | $86.17 |
| Today | +1.6% | +0.0% |
| Return YTD | −33.2% | −1.2% |
| Return 1Y | −36.5% | −10.4% |
| Since July 2, 2026 | −21.0% | −12.1% |
| P/E | 26.8 | 21.2 |
| P/S | 0.7 | 3.4 |
| P/B | 4.7 | 2.5 |
Data as of 2026-10-09 · updates daily after U.S. close
Since July 2, 2026: the change in the closing price from the first session with a close for both companies. Sectivia records these closes itself, starting June 26, 2026.
The two companies
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 →Southern CompanySO
Vogtle is adding nuclear output to what is already one of the biggest US electric and gas utilities.
Full SO profile →More NRG & SO comparisons
Other head-to-heads in the Utilities & power producers segment.