The short version

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

  • WPP PLC ADR is the larger company, worth $5.9B, about 1.6 times Magnite.
  • Magnite grew revenue faster over the last year (+11.2% vs -8.1%).
  • Magnite keeps more of each dollar of revenue as operating profit (15.6% vs 2.8%).

Side by side

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

MeasureMGNIWPP
Market cap$3.7B$5.9B
Share price$25.40$25.38
Revenue (last fiscal year)$714M$13.6B
Free cash flow (last fiscal year)$152M$538M
Revenue growth, last year+11.2%-8.1%
Revenue growth per year, last 5 fiscal years+11.1%+1.4%
Operating margin15.6%2.8%
Net margin22.5%-1.6%
Return on equity17.8%-8.5%
P/E (trailing)24.5x—
Price / free cash flow22.2x9.30x
EV / EBITDA22.7x7.62x
FCF growth the price implies7.5%—
Dividend yield—3.7%
Debt / equity2.24x—
Fundamental gradeCD
Superinvestors holding it41
Insider purchases, last 12 months00

Results from SEC filings

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

Magnite

YearRevenueFree cash flowOp. margin
2021$468M$97M-17.3%
2022$577M$148M-19.5%
2023$620M$177M-25.0%
2024$668M$188M7.6%
2025$714M$152M13.7%

WPP PLC ADR

YearRevenueFree cash flowOp. margin
2021$12.8B$1.7B9.6%
2022$14.4B$477M9.4%
2023$14.8B$1.0B3.6%
2024$14.7B$1.2B9.0%
2025$13.6B$538M2.8%

Where the revenue comes from

Magnite · by regions, 2025

United States$538M75%
International$176M25%

WPP PLC ADR · by segments, 2023

Global Integrated Agencies$12.6B85%
Public Relations$1.3B9%
Specialist Agencies$988M7%
Compare them in fullFifteen years of statements, quarterly results, DCF and IRR models, and any number of peers side by side.
Open MGNI in Investingly

Questions

Which is bigger, Magnite or WPP PLC ADR?

WPP PLC ADR (WPP), at $5.9B against $3.7B.

Which grows faster, MGNI or WPP?

Magnite: revenue grew +11.2% over the last year, against -8.1%.

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