YouTube · Q1 2026 · 2026-05-04
DGX · NYSE
Quest Diagnostics Incorporated
Diagnostics & Research · United States
- Market cap (USD)
- US$25.34B
- Trailing P/E
- 24.37x
- Forward P/E
- 19.04x
- Quarterly revenue growth
- 10.2%
- Trailing net margin
- 9.2%
- Indicated dividend yield
- 1.5%
Snapshot 2026-10-06 · Latest financial period 2026-06-30 · Yahoo Finance. Quotes may be delayed; reporting periods can differ.
Next earnings: 2026-10-22 (provider estimate, not issuer-confirmed).
Company background
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.
Company websiteQ2 2026
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Comparable businesses
DGX peer comparison
Same business group first, then company size. Preferred market cap: 0.5–2x; extended range: one-third–3x. Outside that range, industry benchmarks are labeled separately and excluded from peer medians.
| Metric | DGXQuest Diagnostics IncorporatedSnapshot 2026-10-06Financial period: 2026-06-30 | LHLabcorp Holdings Inc.Snapshot 2026-10-06Financial period: 2026-06-30 | MTDMettler-Toledo International Inc.Snapshot 2026-10-06Financial period: 2026-06-30 | Peer medianSimilar-size peers only |
|---|---|---|---|---|
| Market capMarket value, converted to USD | US$25.34B | US$25.24B | US$31.31B | US$28.28Bn=2 |
| Forward P/EProvider forward earnings estimate | 19.04x | 15.69x | 30.20x | 22.95xn=2 |
| EV / EBITDAEnterprise value / trailing EBITDA | 14.03x | 13.68x | 25.85x | 19.76xn=2 |
| Revenue growthLatest quarter vs prior-year quarter | 10.2% | 5.8% | 4.5% | 5.2%n=2 |
| Operating marginLatest reported quarter | 15.2% | 12.2% | 31.2% | 21.7%n=2 |
| Free cash flow yieldTrailing cash flow / market cap | 3.6% | 3.5% | 2.2% | 2.9%n=2 |
| Net debt / EBITDANet debt / trailing EBITDA | 2.55x | 2.88x | 1.64x | 2.26xn=2 |
| Debt / equityTotal debt / positive book equity | 0.81x | 0.79x | 166.68x | 83.74xn=2 |
| Trailing P/ETrailing twelve-month earnings | 24.37x | 25.73x | 35.22x | 30.47xn=2 |
| Price / bookPrice / positive book equity per share | 3.36x | 2.93x | 2,441.41x | 1,222.17xn=2 |
| EV / salesEnterprise value / trailing revenue | 2.75x | 2.21x | 7.98x | 5.09xn=2 |
| Earnings growthLatest quarter vs prior-year quarter | 15.0% | 28.2% | 18.3% | 23.2%n=2 |
| Gross marginTrailing twelve months | 33.2% | 28.9% | 60.3% | 44.6%n=2 |
| Net marginTrailing twelve months | 9.2% | 7.0% | 21.9% | 14.4%n=2 |
| Return on equityProvider trailing return; positive equity only | 14.6% | 11.7% | — | — |
| Free cash flow marginTrailing free cash flow / revenue | 7.9% | 6.2% | 16.8% | 11.5%n=2 |
| Dividend yieldIndicated annual dividend / price | 1.5% | 0.9% | — | — |
| Earnings payoutProvider trailing dividend payout | 26.1% | 23.8% | 0.0% | 11.9%n=2 |
| Current ratioCurrent assets / current liabilities | 1.59x | 1.80x | 1.12x | 1.46xn=2 |
| BetaProvider historical market sensitivity | 0.54 | 0.85 | 1.19 | 1.02n=2 |
YouTube · Q1 2026 · 2026-05-04
YouTube · Q2 2026 · 2026-08-02
Comparison methodology & limitations
Reviewed operating groups override broad sector classifications. Other companies are matched only within a sufficiently specific provider industry. Business mix, geography and accounting standards can still differ. Market caps are converted to USD using exchange rates captured during the snapshot refresh. Financial ratios that would mix currencies are omitted. Snapshots must be at most 14 days old and no more than seven days apart for automatic selection.
Peer medians require at least two valid similar-size peers for each metric. Negative earnings, nonpositive equity, missing data and irrelevant bank ratios are not presented as attractive valuations. A higher or lower number is not automatically a better investment. Financial statement periods are not calendar-aligned across companies.
Reported performance
Financial trends
Periods are grouped by their ending calendar year or quarter, not identical fiscal calendars. Exact period-end dates appear in tooltips and reported figures. When reporting currencies differ and a recent captured FX rate is available, money and EPS are normalized to USD for comparison. This is not a historical FX restatement. Gaps are not estimated.
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Source: . Window ends at the latest available reporting period.
Revenue
Reported figures
Financial data & calculation notes
Standalone charts use the stated reporting currency. When a chart comparison spans currencies, money and EPS can be normalized to USD using a recent captured FX snapshot; this is for comparison only, not a historical FX restatement. Stock-based compensation is noncash. Free cash flow is operating cash flow less capital spending, which may include capitalized software. Missing metrics are not estimated or assumed to be zero. Banking and insurance ratios require industry-specific interpretation. Latest restatements may differ from figures in older episodes.
Market context
Valuation & price history
Adjusted closing price
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Price figures
Earnings-multiple scenario
Illustrative price = your earnings-per-share assumption × your P/E assumption. This is not a price target or a complete valuation model.
Starting assumptions, when available, use provider forward estimates as of 2026-10-06. Negative earnings require a different valuation method. This calculation omits balance-sheet, dilution and execution risks.
THE RESEARCH RECORD
Research history for DGX
Q2 20262026-07-24
Quest Diagnostics Stock (DGX): It Beat, RAISED Guidance, and Broke Out — Why We Say BUY
Presentation · 2026-07-24 · YouTube
Q1 20262026-04-22
DGX Stock: EPS Beats by 7% — Q1 2026 Earnings Analysis
Presentation · 2026-04-22 · YouTube