The short version

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

  • Citigroup is the larger company, worth $219.9B, close to Banco Santander SA ADR's $191.7B.
  • Citigroup grew revenue faster over the last year (+2.1% vs +0.0%).
  • On earnings, Banco Santander SA ADR is the cheaper stock (12.9x vs 16.0x).

Side by side

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

MeasureCSAN
Market cap$219.9B$191.7B
Share price$129.64$13.49
Revenue (last fiscal year)$85.2B—
Free cash flow (last fiscal year)-$74.2B-$22.5B
Revenue growth, last year+2.1%+0.0%
Revenue growth per year, last 5 fiscal years+4.3%—
Operating margin——
Net margin16.8%—
Return on equity6.7%12.5%
P/E (trailing)16.0x12.9x
Price / free cash flow10.6x—
EV / EBITDA0.42x—
FCF growth the price implies——
Dividend yield1.8%1.8%
Debt / equity11.5x15.6x
Fundamental gradeDD
Superinvestors holding it174
Insider purchases, last 12 months100

Results from SEC filings

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

Citigroup

YearRevenueFree cash flowOp. margin
2021$71.9B$43.0B—
2022$75.3B$19.4B—
2023$78.1B-$80.0B—
2024$80.7B-$26.2B—
2025$85.2B-$74.2B—

Banco Santander SA ADR

YearRevenueFree cash flowOp. margin
2021—$45.3B—
2022—$16.9B—
2023—-$8.6B—
2024—-$34.8B—
2025—-$22.5B—

Where the revenue comes from

Citigroup · by segments, 2025

Markets$22.0B27%
Services$21.3B26%
USPB$21.0B26%
Wealth$8.6B11%
Banking$8.2B10%

Banco Santander SA ADR

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 C in Investingly

Questions

Which is bigger, Citigroup or Banco Santander SA ADR?

Citigroup (C), at $219.9B against $191.7B.

Is C or SAN cheaper?

By trailing P/E, Banco Santander SA ADR (12.9x) is cheaper than Citigroup (16.0x). A lower multiple can also mean the market expects less growth.

Which grows faster, C or SAN?

Citigroup: revenue grew +2.1% over the last year, against +0.0%.

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