Quest DiagnosticsDGX

NYSE · USA · Segment 6 of 8 in the Medicine, pharma & life science value chain: Diagnostics

A nationwide lab network that does routine testing at volume, with more advanced diagnostics and health data work on top.

Diagnostics: Tests, imaging and assays that support clinical decision-making.

Key metrics

Market cap

$26.1B

Price

$243.87

Today

−0.2%

Return YTD

+40.8%

Return 1Y

+33.0%

P/E

24.6

P/S

2.3

P/B

3.5

Data as of 2026-08-25 · updates daily after U.S. close

Theme exposure

Clinical labsDiagnosticsHealth data

In the value chain

Products & services

Routine laboratory testing
Advanced diagnostics
Health data & insights

Competitors

Labcorp
Sonic Healthcare
Exact Sciences

Risks

Reimbursement pressure
Competition from hospital labs

Supply chain

Supplies →

The Cigna GroupCI

← Suppliers

Abbott LaboratoriesABT HologicHOLX IlluminaILMN

Full supply chain for DGX →

Same segment: Diagnostics

Abbott LaboratoriesABT NateraNTRA IDEXX LaboratoriesIDXX LabcorpLH HologicHOLX Bio-Rad LaboratoriesBIO

Compare DGX

DGX vs ABT DGX vs NTRA DGX vs IDXX DGX vs LH DGX vs HOLX DGX vs BIO

See where Quest Diagnostics sits in the full Medicine, pharma & life science map: every segment from upstream suppliers to end markets, with daily metrics.Open the Life science value chain →