CEG vs SO

Constellation Energy and Southern Company, both Utilities

Constellation Energy is the larger company at $104B against $100B. On trailing earnings SO is the cheaper of the two at a P/E of 22.3 against 28.6, a gap that is only a bargain if the two are growing at similar rates. Over the past year SO returned -2.9% against -11% for CEG. The RyuScore puts SO ahead, 52 against 48 out of 100.

Constellation Energy and Southern Company compared on valuation, return and the RyuScore
FigureCEGSO
Last close$294$87.04
Market cap$104B$100B
Trailing P/Elower is cheaper for the same earnings, not automatically better28.622.3
Dividend yield0.1%3.4%
1-year return-11%-2.9%
5-year returnn/a+57%
RyuScoresector-relative, 1–1048/10052/100

Figures from SEC filings and end-of-day closes. Highlighting marks the higher or lower number, which is not the same as the better investment, a low P/E can be a warning and a high one can be deserved.

Constellation Energy

Revenue of $7.5B in Q2 2026, net income $513M. Its largest reported line is Constellation Calpine, 30% of the disclosed total.

Southern Company

Revenue of $8.4B in Q1 2026, net income $1.3B. Its largest reported line is Retail Electric Industrial, 15% of the disclosed total.

Open these two in the interactive comparison to add more names, change the period or see the correlation.