The short version

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

  • Quest Diagnostics is the larger company, worth $25.0B, about 1.4 times Revvity.
  • Quest Diagnostics grew revenue faster over the last year (+10.2% vs +1.3%).
  • Quest Diagnostics keeps more of each dollar of revenue as operating profit (14.1% vs 12.3%).
  • On earnings, Quest Diagnostics is the cheaper stock (25.0x vs 74.5x).
  • Revvity's price assumes faster free cash flow growth: about 12% a year, against 4% for Quest Diagnostics (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.

MeasureDGXRVTY
Market cap$25.0B$17.3B
Share price$230.97$154.18
Revenue (last fiscal year)$11.0B$2.9B
Free cash flow (last fiscal year)$1.4B$509M
Revenue growth, last year+10.2%+1.3%
Revenue growth per year, last 5 fiscal years+0.6%-13.4%
Operating margin14.1%12.3%
Net margin9.2%8.2%
Return on equity14.1%3.3%
P/E (trailing)25.0x74.5x
Price / free cash flow18.4x34.0x
EV / EBITDA15.7x25.6x
FCF growth the price implies3.9%11.9%
Dividend yield1.4%0.18%
Debt / equity1.21x0.67x
Fundamental gradeCD
Superinvestors holding it54
Insider purchases, last 12 months20

Results from SEC filings

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

Quest Diagnostics

YearRevenueFree cash flowOp. margin
2021$10.8B$1.8B22.1%
2022$9.9B$1.3B14.4%
2023$9.3B$864M13.6%
2024$9.9B$909M13.6%
2025$11.0B$1.4B14.1%

Revvity

YearRevenueFree cash flowOp. margin
2021$5.1B$1.3B26.3%
2022$3.3B$594M22.4%
2023$2.8B$10M10.9%
2024$2.8B$542M12.6%
2025$2.9B$509M12.5%

Where the revenue comes from

Quest Diagnostics · by segments, 2025

DIS business$10.8B98%
DS businesses$250M2%

Revvity · by segments, 2025

Life Sciences$1.4B50%
Diagnostics$1.4B50%
Compare them in fullFifteen years of statements, quarterly results, DCF and IRR models, and any number of peers side by side.
Open DGX in Investingly

Questions

Which is bigger, Quest Diagnostics or Revvity?

Quest Diagnostics (DGX), at $25.0B against $17.3B.

Is DGX or RVTY cheaper?

By trailing P/E, Quest Diagnostics (25.0x) is cheaper than Revvity (74.5x). A lower multiple can also mean the market expects less growth.

Which grows faster, DGX or RVTY?

Quest Diagnostics: revenue grew +10.2% over the last year, against +1.3%.

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