The short version

From the latest prices and each company's SEC filings. Who's ahead on each measure, not which to buy.

  • Constellation Energy is the larger company, worth $104.6B, about 36.3 times Kenon Holdings.
  • Constellation Energy grew revenue faster over the last year (+23.0% vs +16.1%).
  • Constellation Energy keeps more of each dollar of revenue as operating profit (14.9% vs 7.2%).
  • On earnings, Constellation Energy is the cheaper stock (25.2x vs 47.1x).
  • Constellation Energy's price assumes faster free cash flow growth: about 24% a year, against 3% for Kenon Holdings (reverse DCF).

Side by side

The stronger figure is shaded where higher (or, for valuation multiples, lower) reads as better. How the implied growth works.

MeasureCEGKEN
Market cap$104.6B$2.9B
Share price$298.07$59.84
Revenue (last fiscal year)$25.5B$872M
Free cash flow (last fiscal year)$1.3B$167M
Revenue growth, last year+23.0%+16.1%
Revenue growth per year, last 5 fiscal years+8.4%+15.6%
Operating margin14.9%7.2%
Net margin11.2%7.6%
Return on equity10.8%4.2%
P/E (trailing)25.2x47.1x
Price / free cash flow81.2x17.2x
EV / EBITDA12.9x9.31x
FCF growth the price implies23.5%3.0%
Dividend yield0.53%6.9%
Debt / equity2.06x1.38x
Fundamental gradeDC
Superinvestors holding it60
Insider purchases, last 12 months80

Results from SEC filings

Revenue and free cash flow by fiscal year, from each company's 10-K filings.

Constellation Energy

YearRevenueFree cash flowOp. margin
2021$18.5B-$2.7B-1.9%
2022$24.3B-$4.0B2.0%
2023$24.9B-$7.7B6.5%
2024$23.6B-$5.0B18.5%
2025$25.5B$1.3B12.1%

Kenon Holdings

YearRevenueFree cash flowOp. margin
2021$488M-$586,0004.6%
2022$574M$480M0.49%
2023$692M-$55M6.2%
2024$751M-$76M6.3%
2025$872M$167M7.2%

Where the revenue comes from

Constellation Energy · by segments, 2025

Mid-Atlantic$6.5B32%
Midwest$5.3B26%
Other Power Regions$4.9B24%
New York$2.4B12%
ERCOT$1.3B6%

Kenon Holdings · by segments, 2025

OPC's associated companies$675M77%
CPV Group$197M23%
Compare them in fullFifteen years of statements, quarterly results, DCF and IRR models, and any number of peers side by side.
Open CEG in Investingly

Questions

Which is bigger, Constellation Energy or Kenon Holdings?

Constellation Energy (CEG), at $104.6B against $2.9B.

Is CEG or KEN cheaper?

By trailing P/E, Constellation Energy (25.2x) is cheaper than Kenon Holdings (47.1x). A lower multiple can also mean the market expects less growth.

Which grows faster, CEG or KEN?

Constellation Energy: revenue grew +23.0% over the last year, against +16.1%.

Prices and ratios as of the last daily update; statements from SEC filings. Information only, not investment advice.