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Valued at a market cap of $20.5 billion, Quest Diagnostics Incorporated (DGX) is a clinical laboratory company that provides diagnostic testing, information, and services to physicians, hospitals, employers, and health plans. The Secaucus, New Jersey-based company operates an extensive network of laboratories, patient service centers, and mobile phlebotomy services.
Companies valued at $10 billion or more are typically classified as “large-cap stocks,” and DGX fits the label perfectly, with its market cap exceeding this threshold, underscoring its size, influence, and dominance within the diagnostics & research industry. The company’s specialty is transforming diagnostic insights into actionable care, utilizing technologies such as digital pathology, bioinformatics, and data analytics to enable doctors to select the most appropriate tests, optimize laboratory operations, and enhance health outcomes.
