The short version

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

  • American Express is the larger company, worth $212.9B, about 1.7 times Capital One Financial.
  • Capital One Financial grew revenue faster over the last year (+49.8% vs +10.0%).
  • On earnings, American Express is the cheaper stock (19.5x vs 63.0x).
  • American Express's price assumes faster free cash flow growth: about -0% a year, against -14% for Capital One Financial (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.

MeasureAXPCOF
Market cap$212.9B$127.8B
Share price$308.17$199.26
Revenue (last fiscal year)$72.2B$8.1B
Free cash flow (last fiscal year)$16.0B$26.1B
Revenue growth, last year+10.0%+49.8%
Revenue growth per year, last 5 fiscal years+14.3%+14.0%
Operating margin——
Net margin15.1%106.2%
Return on equity33.4%9.2%
P/E (trailing)19.5x63.0x
Price / free cash flow13.3x4.90x
EV / EBITDA13.2x5.62x
FCF growth the price implies-0.36%-14.3%
Dividend yield1.1%1.4%
Debt / equity7.99x4.92x
Fundamental gradeCB
Superinvestors holding it1823
Insider purchases, last 12 months1010

Results from SEC filings

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

American Express

YearRevenueFree cash flowOp. margin
2021$42.4B$13.1B—
2022$52.9B$19.2B—
2023$60.5B$17.0B—
2024$65.9B$12.1B—
2025$72.2B$16.0B—

Capital One Financial

YearRevenueFree cash flowOp. margin
2021$4.8B$11.6B—
2022$5.4B$12.9B—
2023$5.6B$19.6B—
2024$5.9B$17.0B—
2025$8.1B$26.1B—

Where the revenue comes from

American Express · by segments, 2025

USCS$34.8B48%
CS$16.9B23%
ICS$13.0B18%
GMNS$7.8B11%

Capital One Financial · by segments, 2025

Credit Card$39.6B74%
Consumer Banking$10.4B19%
Commercial Banking$3.7B7%
Compare them in fullFifteen years of statements, quarterly results, DCF and IRR models, and any number of peers side by side.
Open AXP in Investingly

Questions

Which is bigger, American Express or Capital One Financial?

American Express (AXP), at $212.9B against $127.8B.

Is AXP or COF cheaper?

By trailing P/E, American Express (19.5x) is cheaper than Capital One Financial (63.0x). A lower multiple can also mean the market expects less growth.

Which grows faster, AXP or COF?

Capital One Financial: revenue grew +49.8% over the last year, against +10.0%.

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