Quest Diagnostics (DGX)
Health Care · Clinical laboratory testing and diagnostic services
Quest Diagnostics is one of the largest clinical laboratory testing companies in the United States, providing diagnostic testing and insights to approximately one-third of the adult U.S.
What Quest Diagnostics does
Quest Diagnostics is one of the largest clinical laboratory testing companies in the United States, providing diagnostic testing and insights to approximately one-third of the adult U.S. population annually. The company operates an extensive network of patient service centers, laboratories, and facilities, serving physicians, hospitals, patients, health plans, employers, and other healthcare stakeholders with a comprehensive menu of laboratory tests and data-driven diagnostic solutions. Their proprietary clinical database enables population health analytics and supports value-based care initiatives across the healthcare system.
Themes: ["Clinical laboratory testing","Population health management","Healthcare data and analytics","Value-based care","Physician network integration","Hospital partnerships","AI and automation in diagnostics","Consumer health engagement"]
Fundamentals
- Price$208.05 as of 2026-07-09 close
- Market cap$23.0B as of 2026-07-10
- 1-year return+19.8% as of 2026-07-09 close
- P/E22.48 as of 2026-07-10
- Net margin+9.1% as of 2026-07-10
- Gross margin+33.3% as of 2026-07-10
- ROE+14.1% as of 2026-07-10
- Debt / equity0.77 as of 2026-07-10
- Revenue growth (YoY)+11.0% as of 2026-07-10
- Revenue CAGR (3y)+3.7% SEC XBRL
- Beta0.56 as of 2026-07-10
Dividend: yield +1.7%; 5-year non-decreasing per-share dividend streak (SEC XBRL).
Key risks (from latest filing)
["Dependence on physician referrals and hospital partnerships; changes in healthcare utilization patterns or consolidation among healthcare providers could reduce testing volumes","Regulatory and compliance risks related to laboratory operations, data privacy (given access to large clinical database), and evolving reimbursement regulations affecting diagnostic testing coverage and pricing","Competitive pressure in the clinical laboratory market from other national laboratories and emerging point-of-care testing alternatives that could impact market share and pricing power"]
Competitors & peers
- LabCorp (LH)
- Sonic Healthcare
- Mayo Clinic Laboratories
- American Clinical Laboratory Sciences (ACLS)
- Amedisys
Fundamentals: Finnhub, as of 2026-07-10. Filings: SEC EDGAR. Prices are delayed daily-close data.
Last updated 2026-07-09.
Informational only — NOT financial advice. All figures are delayed daily-close data from SEC EDGAR & Finnhub, shown with their as-of date.