Company page

Quest Diagnostics Incorporated

Quest Diagnostics Incorporated, trading under the ticker DGX, is a leading provider of diagnostic information services in the United States. With a market capitalization of approximately $25.2 billion, the company focuses on delivering accurate and timely lab testing and related services to healthcare providers and patients. Quest Diagnostics plays a crucial role in the healthcare system by helping to diagnose and monitor diseases.

DGX:NYSEUpdated August 21, 2026
Quest Diagnostics Incorporated logo
Ticker
DGX:NYSE
Asset type
Stock
Market cap
$26.97B
Sector
Health Services
Industry
Services to the Health Industry
Exchange
NYSE
Currency
USD