QUEST DIAGNOSTICS INC DGX 70.06
Health Care · NYSE · Data as of 2026-10-23
QUEST DIAGNOSTICS INC (DGX) has delivered +4.8% annualized revenue growth, +3.8% earnings growth, and +4.5% dividend growth over 10 years of data. Ranked #260 of 1968 stocks overall and #26 of 260 in the Health Care sector by Steady Score.
About QUEST DIAGNOSTICS INC
Company Overview
Quest Diagnostics provides clinical laboratory testing and diagnostic information. Physicians, hospitals, employers, insurers and patients use its laboratories and patient service centers for routine blood work, disease screening, genetic and molecular tests, drug monitoring and other analyses. The company also supplies laboratory-management, risk-assessment and health-information services. Its logistics network transports specimens from collection sites to specialized laboratories across the United States.
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Business Model & Revenue
Revenue comes mainly from diagnostic tests reimbursed by health plans, government programs, patients and healthcare providers. Test volume, reimbursement rates and mix between routine and advanced assays drive sales. Scale allows specimens to be routed through regional and specialized labs, while acquisitions expand local density and test capabilities. Labor, supplies, courier logistics and payer contracts are major economic factors.
Key Facts & Market Position
Quest combines a national collection and logistics footprint with centralized testing expertise. Dense routes and high analyzer utilization support efficiency, while broad test menus help physicians use one laboratory relationship. Reimbursement pressure, regulation of clinical labs, data privacy and competition from hospital and independent laboratories shape the market.