Key PointsQuest Diagnostics expects consumer health revenue growth to exceed 30% in 2026.

Quest Diagnostics: 3 Key Takeaways for Long-Term Investors

On October 21, 2026, Quest Diagnostics Incorporated learned of unauthorized access to its Quanum LSM system, which certain clients use to place test orders, receive and look up results. The Company promptly initiated its cybersecurity incident response procedures to contain the a

Quest Diagnostics Incorporated Reports Unauthorized Access to Quanum LSM System on October 21, 2026

Quest Diagnostics Incorporated reported financial results for the third quarter ended September 30, 2026. The company delivered third quarter revenues of $3.10 billion, which represents an increase of 10.0% from 2025. Reported diluted earnings per share for the quarter was $2.78,

Quest Diagnostics Reports Third Quarter 2026 Financial Results; Raises Revenue and EPS Guidance for Full Year 2026

(RTTNews) - Quest Diagnostics (DGX) will host a conference call at 8:30 AM ET on October 22, 2026, to discuss Q3 26 earnings results.

Quest Diagnostics Q3 26 Earnings Conference Call At 8:30 AM ET 

(RTTNews) - Quest Diagnostics (DGX) reported a profit for its third quarter that Increases, from last year

Quest Diagnostics Announces Increase In Q3 Income 

In the latest look at the underlying components of the S&P 500 ordered by largest market capitalization, American Water Works Co, Inc. (Symbol: AWK) has taken over the #333 spot from Quest Diagnostics, Inc. (Symbol: DGX), according to The Online Investor.  

	Market capitali

American Water Works Now #333 Largest Company, Surpassing Quest Diagnostics

Quest Diagnostics Incorporated provides diagnostic testing and services in the United States. The company develops and delivers diagnostic information services, such as routine, non-routine and advanced clinical testing, anatomic pathology testing, and other diagnostic information services. It also provides services under the Quest Diagnostics brand, as well as under the AmeriPath, Dermpath Diagnostics, ExamOne, and Quanum brands to physicians, hospitals, patients and consumers, health plans, government agencies, employers, retailers, pharmaceutical companies and insurers commercial clinical laboratories, and accountable care organizations through a network of laboratories, patient service centers, phlebotomists in physician offices, call centers and mobile phlebotomists, nurses, and other health and wellness professionals. In addition, the company offers risk assessment services for the life insurance industry; healthcare IT healthcare providers and payers; testing and medical director services at hospital laboratories; test offerings in cardiometabolic and endocrine; cancer; clinical drug monitoring and toxicology; infectious disease, including autoimmune; neurology diagnostics, including Alzheimer's disease; and women's health, such as prenatal genetic; workplace drug testing, testing urine, hair, and oral fluid specimens services; and employer population health services, including biometric screenings, flu shots, and related preventative services. Further, it provides population health solutions; extended care services; develops in vitro diagnostic tests; laboratory diagnostic information and digital health connectivity systems; underwriting support services, including data gathering, paramedical examinations, and clinical laboratory testing and analytics; and national specimen collection and health data solutions. Quest Diagnostics Incorporated was founded in 1967 and is headquartered in Secaucus, New Jersey.

Quest Diagnostics Incorporated News