Stocks / DGX vs ILMN

DGX vs ILMN: Which Stock Is the Better Buy?

Quest Diagnostics Incorporated and Illumina, Inc. side by side — fundamentals from SEC filings, refreshed nightly. Sector: Healthcare.

DGX is the larger company ($25.7B vs $24.7B). On the fundamentals, ILMN grows revenue faster (6.0% vs 3.2%); ILMN earns a higher net margin (19.6% vs 9.0%); ILMN has the stronger return on equity (31.2% vs 13.8%). On the filings, DGX carries fewer potential red flags (0 vs 1). Full numbers below — the stronger figure on each row is in green.

AI verdict — DGX vs ILMN, read from the filings

The stronger business, the cheaper stock, and the risks — synthesised from both companies’ SEC filings, every figure computed not guessed. Not investment advice.

 Quest Diagnostics Incorporated (DGX)Illumina, Inc. (ILMN)
Market cap$25.7B$24.7B
Revenue (latest FY)$11.04B$4.34B
Net income (latest FY)$992.00M$850.00M
Revenue growth (5y CAGR)3.2%6.0%
Net margin9.0%19.6%
Return on equity13.8%31.2%
P/E ratio24.829.6
Dividend yield1.5%
Profitable years (of last 10)107
Positive free cash flowYesYes

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See the full DGX vs ILMN breakdown

Both companies across 19 years of income statement, balance sheet and cash flow — with ratios, health checks and Ask, the SEC-grounded research assistant. Free, no account needed.

Open DGX's full financials →   Open ILMN's full financials →

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Frequently asked questions

Which is bigger, DGX or ILMN?

Quest Diagnostics Incorporated is larger by market capitalization — $25.7B versus $24.7B.

Which grows faster, DGX or ILMN?

Over the last five fiscal years, Illumina, Inc. grew revenue faster — 6.0%/yr versus 3.2%/yr, computed from SEC-filed statements.

Where does this data come from?

All figures are computed from official SEC filings (10-K), refreshed nightly. This is a data comparison, not investment advice.

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