With a market cap of $21.9 billion, Quest Diagnostics Incorporated (DGX) is a leading provider of diagnostic testing services in the United States and internationally. The company operates through two primary business groups - Diagnostic Information Services and Diagnostic Solutions, serving a wide range of clients including physicians, hospitals, insurers, and government agencies.
Companies valued at $10 billion or more are generally classified as “large-cap” stocks, and Quest Diagnostics fits this criterion perfectly, exceeding the mark. Quest focuses on accelerating growth through strategic partnerships and innovation, while driving operational excellence across its customer value chain and IT infrastructure.