The short version

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

  • Natera is the larger company, worth $57.6B, about 1.4 times Illumina.
  • Natera grew revenue faster over the last year (+37.7% vs +9.4%).
  • Illumina keeps more of each dollar of revenue as operating profit (19.6% vs -10.7%).
  • Natera's price assumes faster free cash flow growth: about 51% a year, against 15% for Illumina (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.

MeasureILMNNTRA
Market cap$41.1B$57.6B
Share price$278.17$400.71
Revenue (last fiscal year)$4.3B$2.3B
Free cash flow (last fiscal year)$931M$109M
Revenue growth, last year+9.4%+37.7%
Revenue growth per year, last 5 fiscal years-1.0%+38.6%
Operating margin19.6%-10.7%
Net margin18.4%-7.1%
Return on equity29.1%-10.6%
P/E (trailing)49.4x—
Price / free cash flow44.2x527.9x
EV / EBITDA30.8x—
FCF growth the price implies15.4%50.7%
Dividend yield——
Debt / equity1.34x0.46x
Fundamental gradeCD
Superinvestors holding it69
Insider purchases, last 12 months60

Results from SEC filings

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

Illumina

YearRevenueFree cash flowOp. margin
2021$4.5B$337M-2.7%
2022$4.6B$106M-91.2%
2023$4.5B$283M-23.7%
2024$4.4B$709M-19.1%
2025$4.3B$931M18.6%

Natera

YearRevenueFree cash flowOp. margin
2021$625M-$376M-74.8%
2022$820M-$479M-66.0%
2023$1.1B-$286M-41.2%
2024$1.7B$69M-13.1%
2025$2.3B$109M-13.4%

Where the revenue comes from

Illumina · by segments, 2025

Sequencing$4.0B92%
Microarray$358M8%

Natera · by products, 2025

Product$2.3B100%
Licensing and other$10M0%
Compare them in fullFifteen years of statements, quarterly results, DCF and IRR models, and any number of peers side by side.
Open ILMN in Investingly

Questions

Which is bigger, Illumina or Natera?

Natera (NTRA), at $57.6B against $41.1B.

Which grows faster, ILMN or NTRA?

Natera: revenue grew +37.7% over the last year, against +9.4%.

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