The short version

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

  • American Electric Power Co is the larger company, worth $65.4B, about 1.4 times Entergy.
  • Entergy grew revenue faster over the last year (+12.0% vs +10.2%).
  • American Electric Power Co keeps more of each dollar of revenue as operating profit (24.1% vs 23.1%).
  • On earnings, American Electric Power Co is the cheaper stock (17.8x vs 25.8x).

Side by side

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

MeasureAEPETR
Market cap$65.4B$46.3B
Share price$122.81$102.80
Revenue (last fiscal year)$21.9B$12.9B
Free cash flow (last fiscal year)$3.5B-$2.5B
Revenue growth, last year+10.2%+12.0%
Revenue growth per year, last 5 fiscal years+6.8%+2.5%
Operating margin24.1%23.1%
Net margin16.3%13.4%
Return on equity11.5%10.3%
P/E (trailing)17.8x25.8x
Price / free cash flow9.59x—
EV / EBITDA13.0x12.4x
FCF growth the price implies4.1%—
Dividend yield3.0%2.5%
Debt / equity2.66x3.36x
Fundamental gradeCD
Superinvestors holding it60
Insider purchases, last 12 months41

Results from SEC filings

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

American Electric Power Co

YearRevenueFree cash flowOp. margin
2021$16.8B—20.3%
2022$19.6B—17.7%
2023$19.0B$4.9B18.7%
2024$19.7B$6.4B21.8%
2025$21.9B$3.5B24.3%

Entergy

YearRevenueFree cash flowOp. margin
2021$11.7B$2.1B15.7%
2022$13.8B-$2.5B14.9%
2023$12.1B-$146M21.6%
2024$11.9B-$350M22.3%
2025$12.9B-$2.5B24.7%

Where the revenue comes from

American Electric Power Co · by segments, 2025

VIU$12.8B54%
T&D$6.1B25%
G&M$2.7B11%
AEPTHCo$2.3B10%

Entergy · by segments, 2025

Utility$12.9B100%
Corporate Segment and Other Operating Segment$59M0%
Compare them in fullFifteen years of statements, quarterly results, DCF and IRR models, and any number of peers side by side.
Open AEP in Investingly

Questions

Which is bigger, American Electric Power Co or Entergy?

American Electric Power Co (AEP), at $65.4B against $46.3B.

Is AEP or ETR cheaper?

By trailing P/E, American Electric Power Co (17.8x) is cheaper than Entergy (25.8x). A lower multiple can also mean the market expects less growth.

Which grows faster, AEP or ETR?

Entergy: revenue grew +12.0% over the last year, against +10.2%.

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