Quest Diagnostics Inc (DGX)

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.

Symbol
DGX
Exchange
NYSE
Sector
Healthcare
Industry
Diagnostics & Research
Market cap
$25.90B
52 week range
171.18 - 248.84

Valuation

Share price
$233.33 (close of 2026-10-02)
P/E (TTM)
24.46x
Price to book
3.31x
Price to free cash flow
19.20x
Enterprise value
$31.66B
Book value per share
$70.44

Price performance

PeriodChange
1 day+0.97%
5 days-1.27%
1 month-3.10%
3 months+8.16%
6 months+17.83%
Year to date+34.46%
1 year+28.94%
3 years+92.98%
5 years+62.83%
10 years+175.71%
All time+6566.57%

Members of Congress who disclosed DGX trades

Julie Johnson · Alan Armstrong · Carol Miller · Julia Letlow

Super investors holding DGX

Christopher Davis (Davis Selected Advisers) · Ken Griffin (Citadel) · Robert Olstein (Olstein Capital Management) · First Eagle Investment (First Eagle Investment Management, LLC) · Ray Dalio (Bridgewater Associates)

Profitability and growth

Return on equity
13.77%
Return on invested capital
9.29%
Return on assets
6.11%
Return on capital employed
11.16%
Gross margin
33.21%
Net margin
8.99%
EBITDA margin
19.27%
Revenue growth
11.78%
Net income growth
13.89%
Free cash flow growth
49.50%

Cash flow and balance sheet

Free cash flow yield (TTM)
5.21%
Current ratio
1.59x
Net debt to EBITDA
2.56x

Latest reported year

Period end
2025-12-31
Fiscal year
2025
Revenue
$11.04B
Cost of revenue
$7.37B
Gross profit
$3.67B
EBITDA
$2.13B
Net income
$992.00M
Earnings per share
$8.87
Interest expense
$277.00M
Shares outstanding
111.00M

Income statement by year

Period endRevenueGross profitNet incomeEPS
2025-12-31$11.04B$3.67B$992.00M$8.87
2024-12-31$9.87B$3.24B$871.00M$7.78
2023-12-31$9.25B$3.05B$854.00M$7.59
2022-12-31$9.88B$3.43B$946.00M$8.10
2021-12-31$10.79B$4.21B$2.00B$15.85
2020-12-31$9.44B$3.63B$1.43B$10.62
2019-12-31$7.73B$2.69B$858.00M$6.36
2018-12-31$7.53B$2.60B$736.00M$5.39
2017-12-31$7.40B$2.68B$772.00M$5.63
2016-12-31$7.21B$2.90B$645.00M$4.58

Margins and returns by year

Period endGross marginNet marginReturn on equityReturn on capital
2025-12-3133.21%8.99%13.77%9.29%
2024-12-3132.86%8.82%12.78%8.04%
2023-12-3133.00%9.23%13.47%9.09%
2022-12-3134.74%9.57%15.95%11.27%
2021-12-3139.02%18.49%30.77%17.32%
2020-12-3138.50%15.16%21.02%14.62%
2019-12-3134.80%11.11%15.09%9.98%
2018-12-3134.59%9.77%13.97%10.18%
2017-12-3136.25%10.43%15.58%10.74%
2016-12-3140.19%8.94%13.84%10.55%

Cash and debt by year

Period endCashDebt
2025-12-31$420.00M$5.17B
2024-12-31$549.00M$5.62B
2023-12-31$686.00M$4.41B
2022-12-31$315.00M$3.98B
2021-12-31$872.00M$4.01B
2020-12-31$1.16B$4.01B
2019-12-31$1.19B$3.97B
2018-12-31$135.00M$3.43B
2017-12-31$137.00M$3.75B
2016-12-31$359.00M$3.73B

Free cash flow by year

Period endFree cash flowStock-based compensation
2025-12-31$1.36B$88.00M
2024-12-31$909.00M$88.00M
2023-12-31$864.00M$77.00M
2022-12-31$1.31B$77.00M
2021-12-31$1.83B$79.00M
2020-12-31$1.59B$97.00M
2019-12-31$843.00M$56.00M
2018-12-31$817.00M$61.00M
2017-12-31$923.00M$79.00M
2016-12-31$823.00M$69.00M

Dividend history

Most recent payment
2026-07-08
Paid in the last twelve months
$3.32
Payment dateDividend per share
2026-07-08$0.86
2026-04-06$0.86
2026-01-13$0.80
2025-10-03$0.80
2025-07-07$0.80
2025-04-07$0.80
2025-01-14$0.75
2024-10-04$0.75

Investor relations

Next earnings report

Next confirmed report
2026-10-22
Consensus EPS estimate
$2.85

Past earnings dates

ReportedFiscal periodEPS estimate
2026-07-23Jun/2026$2.81
2026-04-21Mar/2026$2.37
2026-02-10Dec/2025$2.36
2025-10-21Sep/2025$2.51
2025-07-22Jun/2025$2.57
2025-07-21--
2025-04-22Mar/2025$2.15
2025-04-21--

Filings and sources

Company website
questdiagnostics.com
SEC filings
10-K, 10-Q and 8-K on EDGAR
Earnings calendar
All upcoming reports

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Price-to-earnings ratio · Discounted cash flow · Free cash flow · Earnings per share · Return on equity · Gross margin vs net margin · Reading a balance sheet · Debt and leverage · Dividend yield · Insider transactions and Form 4 · How to read a stock chart

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