Moatly / Stocks / DGX

Quest Diagnostics (DGX) — what is it worth?

$231.09 · $25.5B market cap · Medical - Diagnostics & Research
Scored from reported financial statements. Data as of 2026-10-02.
Moat
62
Durability of advantage
Management
77
Returns and capital use
Margin of safety
6
Price against value
Buy price
$123.77
Consensus of three methods
Intrinsic value
$25.47
What the business is worth
Margin of safety price
$12.74
Intrinsic value less 50%
10-CAP price
$123.77
Ten times owner earnings
Payback time price
$114.28
Eight years of free cash flow
What the numbers say

Quest Diagnostics is scored 62 for moat and 77 for management. The management score rests on a return on invested capital of 8.4% and a gross margin of 31.9% — figures that describe a business earning a respectable return on what it employs. Debt sits at 0.96x equity.

Three independent anchors set the price worth paying. Growth is modelled at 3.2% a year, the rate measured from the filings. The exit multiple assumed is 8.0x. That produces an intrinsic value of $25.47, a 10-CAP price of $123.77 and a payback time price of $114.28, with the value zone set at the highest of the three, $123.77. Today's price of $231.09 is 87% above it.

The price is above the value zone and the business scores 62 for moat and 77 for management. Neither test argues for paying up here.

Key figures

Price$231.09
Market cap$25.5B
P/E ratio24.5x
Return on invested capital8.4%
Gross margin31.9%
Debt to equity0.96x
Free cash flow yield7.1%
Growth rate used3.2%
Growth rate measured3.0%
Exit multiple assumed8.0x

How it compares

CompanyMoatBuy price
LabCorp (LH)42$158.56
Mettler Toledo (MTD)53$455.74
Medpace Holdings Inc (MEDP)86$405.75
Eurofins Scientific (ERFSF)47$114.44

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Run your own assumptions

Every number above is built on assumptions that can be changed. In Moatly you can move the growth rate, the exit multiple and the margin of safety and watch every figure recalculate, so you are testing your own view of Quest Diagnostics rather than accepting ours.

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Not investment advice. Estimates only, built on stated assumptions that could be wrong. Figures are drawn from reported financial statements and were current as of the date shown. Do your own research.