Quest Diagnosticsvs.Labcorp
DGX vs LH · both in Diagnostics, part of the Medicine, pharma & life science value chain: Tests, imaging and assays that support clinical decision-making.
Quest Diagnostics and Labcorp are similar in size by market cap; year to date, Quest Diagnostics leads (+19.5% vs +10.3%).
Side by side
| DGX | LH | |
|---|---|---|
| Market cap | $23.1B | $22.7B |
| Price | $207.44 | $276.81 |
| Today | −0.3% | −0.3% |
| Return YTD | +19.5% | +10.3% |
| Return 1Y | +21.0% | +9.1% |
| P/E | 22.6 | 24.1 |
| P/S | 2.1 | 1.6 |
| P/B | 3.1 | 2.6 |
Data as of 2026-07-11 · updates daily after U.S. close
The two companies
Quest DiagnosticsDGX
Nationwide clinical laboratory network for routine and advanced diagnostics.
Full DGX profile →LabcorpLH
One of the largest US clinical laboratory networks plus contract research.
Full LH profile →More comparisons in Diagnostics
See where DGX and LH sit in the full Medicine, pharma & life science map — every segment from suppliers to end markets.Open the Life science value chain →