The short version

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

  • STERIS is the larger company, worth $21.4B, about 1.7 times Penumbra.
  • Penumbra grew revenue faster over the last year (+14.9% vs +7.3%).
  • STERIS keeps more of each dollar of revenue as operating profit (18.9% vs 12.4%).
  • On earnings, STERIS is the cheaper stock (27.5x vs 74.5x).
  • Penumbra's price assumes faster free cash flow growth: about 22% a year, against 6% for STERIS (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.

MeasurePENSTE
Market cap$12.7B$21.4B
Share price$319.40$214.40
Revenue (last fiscal year)$1.4B$5.9B
Free cash flow (last fiscal year)$175M$972M
Revenue growth, last year+14.9%+7.3%
Revenue growth per year, last 5 fiscal years+17.1%+8.9%
Operating margin12.4%18.9%
Net margin10.7%13.3%
Return on equity10.5%11.2%
P/E (trailing)74.5x27.5x
Price / free cash flow72.7x22.0x
EV / EBITDA56.2x13.8x
FCF growth the price implies22.0%6.2%
Dividend yield—1.1%
Debt / equity0.29x0.49x
Fundamental gradeCB
Superinvestors holding it45
Insider purchases, last 12 months08

Results from SEC filings

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

Penumbra

YearRevenueFree cash flowOp. margin
2021$748M-$12M-1.0%
2022$847M-$75M0.72%
2023$1.1B$82M6.9%
2024$1.2B$147M0.78%
2025$1.4B$175M13.5%

STERIS

YearRevenueFree cash flowOp. margin
2022$4.2B$397M11.3%
2023$4.5B$395M17.4%
2024$5.1B$613M16.3%
2025$5.5B$778M15.9%
2026$5.9B$972M18.6%

Where the revenue comes from

Penumbra · by products, 2025

Thrombectomy$948M68%
Embolization and Other$456M32%

STERIS · by segments, 2026

Healthcare Segment$4.2B71%
AST$1.1B19%
Life Sciences$589M10%
Compare them in fullFifteen years of statements, quarterly results, DCF and IRR models, and any number of peers side by side.
Open PEN in Investingly

Questions

Which is bigger, Penumbra or STERIS?

STERIS (STE), at $21.4B against $12.7B.

Is PEN or STE cheaper?

By trailing P/E, STERIS (27.5x) is cheaper than Penumbra (74.5x). A lower multiple can also mean the market expects less growth.

Which grows faster, PEN or STE?

Penumbra: revenue grew +14.9% over the last year, against +7.3%.

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