The short version

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

  • IQVIA is the larger company, worth $42.3B, close to Illumina's $41.1B.
  • Illumina grew revenue faster over the last year (+9.4% vs +8.4%).
  • Illumina keeps more of each dollar of revenue as operating profit (19.6% vs 13.2%).
  • On earnings, IQVIA is the cheaper stock (31.5x vs 49.4x).
  • Illumina's price assumes faster free cash flow growth: about 15% a year, against 5% for IQVIA (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.

MeasureILMNIQV
Market cap$41.1B$42.3B
Share price$278.17$259.88
Revenue (last fiscal year)$4.3B$16.3B
Free cash flow (last fiscal year)$931M$2.1B
Revenue growth, last year+9.4%+8.4%
Revenue growth per year, last 5 fiscal years-1.0%+4.1%
Operating margin19.6%13.2%
Net margin18.4%8.3%
Return on equity29.1%22.3%
P/E (trailing)49.4x31.5x
Price / free cash flow44.2x20.7x
EV / EBITDA30.8x16.2x
FCF growth the price implies15.4%5.4%
Dividend yield——
Debt / equity1.34x3.75x
Fundamental gradeCC
Superinvestors holding it610
Insider purchases, last 12 months62

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%

IQVIA

YearRevenueFree cash flowOp. margin
2021$13.9B$2.3B10.0%
2022$14.4B$1.6B12.5%
2023$15.0B$1.5B13.2%
2024$15.4B$2.1B14.3%
2025$16.3B$2.1B13.4%

Where the revenue comes from

Illumina · by segments, 2025

Sequencing$4.0B92%
Microarray$358M8%

IQVIA · by segments, 2025

Research & Development Solutions$8.9B55%
Technology & Analytics Solutions$6.6B41%
Contract Sales & Medical Solutions$788M5%
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 IQVIA?

IQVIA (IQV), at $42.3B against $41.1B.

Is ILMN or IQV cheaper?

By trailing P/E, IQVIA (31.5x) is cheaper than Illumina (49.4x). A lower multiple can also mean the market expects less growth.

Which grows faster, ILMN or IQV?

Illumina: revenue grew +9.4% over the last year, against +8.4%.

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