The short version

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

  • Edison International is the larger company, worth $21.2B, close to CMS Energy's $19.8B.
  • Edison International grew revenue faster over the last year (+7.7% vs -0.5%).
  • Edison International keeps more of each dollar of revenue as operating profit (30.8% vs 18.9%).
  • On earnings, Edison International is the cheaper stock (5.9x vs 17.7x).

Side by side

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

MeasureCMSEIX
Market cap$19.8B$21.2B
Share price$65.07$55.30
Revenue (last fiscal year)$8.5B$19.3B
Free cash flow (last fiscal year)—-$715M
Revenue growth, last year-0.5%+7.7%
Revenue growth per year, last 5 fiscal years+3.9%+6.7%
Operating margin18.9%30.8%
Net margin11.6%18.1%
Return on equity10.5%20.5%
P/E (trailing)17.7x5.93x
Price / free cash flow——
EV / EBITDA11.9x6.48x
FCF growth the price implies——
Dividend yield3.4%6.2%
Debt / equity3.12x4.36x
Fundamental gradeDC
Superinvestors holding it43
Insider purchases, last 12 months10

Results from SEC filings

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

CMS Energy

YearRevenueFree cash flowOp. margin
2021$7.3B-$257M15.6%
2022$8.6B-$1.5B14.2%
2023$7.5B—16.6%
2024$7.5B—19.8%
2025$8.5B—20.2%

Edison International

YearRevenueFree cash flowOp. margin
2021$14.9B-$5.5B9.9%
2022$17.2B-$2.6B8.6%
2023$16.3B-$2.0B16.1%
2024$17.6B-$693M16.6%
2025$19.3B-$715M36.7%

Where the revenue comes from

CMS Energy · by segments, 2025

Electric Utility$5.6B67%
Gas Utility$2.5B30%
NorthStar Clean Energy$259M3%

Edison International

No segment breakdown reported.

Compare them in fullFifteen years of statements, quarterly results, DCF and IRR models, and any number of peers side by side.
Open CMS in Investingly

Questions

Which is bigger, CMS Energy or Edison International?

Edison International (EIX), at $21.2B against $19.8B.

Is CMS or EIX cheaper?

By trailing P/E, Edison International (5.93x) is cheaper than CMS Energy (17.7x). A lower multiple can also mean the market expects less growth.

Which grows faster, CMS or EIX?

Edison International: revenue grew +7.7% over the last year, against -0.5%.

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