Quest Diagnostics Incorporated

Quest Diagnostics Incorporated provides diagnostic testing, information, and services in the United States and internationally. The company develops and delivers diagnostic information services, such as routine testing, non-routine and advanced clinical testing, anatomic pathology testing, and other diagnostic information services. It offers diagnostic information services primarily under the Quest Diagnostics brand, as well as under the AmeriPath, Dermpath Diagnostics, ExamOne, and Quanum brands to patients, clinicians, hospitals, independent delivery networks, health plans, employers, direct contract entities, and accountable care organizations through a network of laboratories, patient service centers, phlebotomists in physician offices, call centers and mobile paramedics, nurses, and other health and wellness professionals. The company also provides risk assessment services for the life insurance industry; and healthcare organizations and clinicians robust information technology solutions. Quest Diagnostics Incorporated was founded in 1967 and is headquartered in Secaucus, New Jersey.

Quest Diagnostics Incorporated trades as DGX on NYSE. The company is classified in Healthcare / Medical - Diagnostics & Research and reports in USD.

The current profile places the business in Medical - Diagnostics & Research. This section is intended to summarize the operating segments, products, geographies, and main revenue lines from official filings.

Latest available fiscal data shows $11.04B of revenue and $992.00M of net income.

Use this area for management strategy, capital allocation priorities, target markets, and measurable goals from the latest annual report or investor presentation.

The app now provides the structure, but exact strategic claims should come from official company documents before being treated as a finished investment thesis.

Quest Diagnostics Incorporated can be compared against peers such as ICON Public Limited Company, Illumina, Inc., Incyte Corporation, Labcorp Holdings Inc., Medpace Holdings, Inc., Tenet Healthcare Corporation.

A complete thesis should compare growth, margins, balance-sheet risk, valuation multiples, and market position against direct competitors.

Current signals to investigate include market capitalization of $22.17B, beta of 0.59, and return on equity of +13.8%.

This section should be validated with evidence such as durable margins, brand strength, regulation, switching costs, cost advantage, distribution, or technology.

Key risks should include financial leverage, cyclicality, customer concentration, regulatory exposure, currency risk, and execution risk.

DGX currently shows total debt of $6.92B and beta of 0.59. Missing data should be treated as a research gap, not as low risk.

Production-capacity detail is not available as structured data yet. For industrial, defense, semiconductor, or real-estate companies, this should be reviewed from annual reports and investor presentations.

No structured backlog field is available yet. If the company reports backlog, review the relevant filing section before adding it to the thesis.

Use this section for major contracts, product launches, construction projects, acquisitions, or strategic programs that can materially affect valuation.

Recent filings to review: 4 (2026-06-02 00:00:00), 4 (2026-05-21 00:00:00), 4 (2026-05-21 00:00:00), 4 (2026-05-21 00:00:00).

Customer concentration is not available as structured data here. Add it from official filings when a company discloses material customers or revenue concentration.

Supplier concentration and critical supply-chain dependencies are not available as structured data here. This should be researched from annual reports and risk disclosures.

Company website: https://www.questdiagnostics.com

For US-listed stocks, verify the thesis against official filings, earnings call transcripts, and company investor relations materials.