Quest Diagnostics Valuation Multiples

Quest Diagnostics is valued at $26B as of October 2026, a 2.7x revenue multiple. In the last 12 months, Quest Diagnostics revenue was $12B and Quest Diagnostics EBITDA was $2.3B.

Quest Diagnostics Overview

About Quest Diagnostics

Quest Diagnostics is a leading independent provider of diagnostic testing, information, and services in the US. The company generates over 95% of its revenue through clinical testing, anatomic pathology, esoteric testing, and substance abuse testing with specimens collected at its national network of roughly 2,300 patient service centers, as well as multiple doctors offices and hospitals. The firm also runs a much smaller diagnostic solutions segment that provides clinical trials testing, risk-assessment services, and information technology solutions.


Founded

1990

HQ

United States

Employees

56.0K

Financials (LTM)

Revenue: $12B
EBITDA: $2.3B

EV

$32B

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Quest Diagnostics Financials

Quest Diagnostics reported last 12-month revenue of $12B and EBITDA of $2.3B.

In the same LTM period, Quest Diagnostics generated $3.9B in gross profit, $2.3B in EBITDA, and $1.2B in net income.

Revenue (LTM)


Quest Diagnostics P&L

In the most recent fiscal year, Quest Diagnostics reported revenue of $11B and EBITDA of $2.2B.

Quest Diagnostics is profitable as of last fiscal year, with gross margin of 33%, EBITDA margin of 20%, and net margin of 9%.

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LTMLast FY202320242025202620272028
Revenue$12B$11B$9.3B$9.9B$11B
Gross Profit$3.9B$3.7B$3.1B$3.2B$3.7B
Gross Margin33%33%33%33%33%
EBITDA$2.3B$2.2B$1.7B$1.9B$2.2B
EBITDA Margin20%20%19%19%20%
EBIT Margin16%14%14%14%14%
Net Profit$1.2B$992M$854M$871M$992M
Net Margin10%9%9%9%9%
Net Debt-$5.6B---

Financial data powered by Morningstar, Inc.

Quest Diagnostics Stock Performance

Quest Diagnostics has current market cap of $26B, and enterprise value of $32B.

Market Cap Evolution


Quest Diagnostics' stock price is $235.00.

Quest Diagnostics share price increased by 0.8% in the last 30 days, and by 33.6% in the last year.

Quest Diagnostics has an EPS (earnings per share) of $8.99.

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EVMarket CapPrice 1DPrice 1MPrice 3MPrice 12MEPS
$32B$26B-1.7%0.8%0.9%33.6%$8.99

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Quest Diagnostics Valuation Multiples

Quest Diagnostics trades at 2.7x EV/Revenue multiple, and 13.9x EV/EBITDA.

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EV / Revenue (LTM)


Quest Diagnostics Financial Valuation Multiples

As of October 17, 2026, Quest Diagnostics has market cap of $26B and EV of $32B.

Quest Diagnostics has a P/E ratio of 21.1x.

LTMLast FY202320242025202620272028
EV/Revenue2.7x2.9x3.5x3.2x2.9x
EV/EBITDA13.9x14.9x18.5x16.9x14.9x
EV/EBIT17.0x20.6x25.4x23.8x20.6x
EV/Gross Profit8.2x8.8x10.5x9.9x8.8x
P/E21.1x26.1x30.4x29.8x26.1x
EV/FCF25.9x23.6x37.1x35.3x23.6x

Multiples above and below 250x are considered non-meaningful (n/m). Valuation data powered by FactSet, Inc. and Morningstar, Inc.

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Quest Diagnostics Margins & Growth Rates

Quest Diagnostics grew revenue by 9% and EBITDA by 9% in the last fiscal year.

In the most recent fiscal year, Quest Diagnostics reported gross margin of 33%, EBITDA margin of 20%, and net margin of 9%.

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Quest Diagnostics Margins

Last FY202420252026202720282029
Gross Margin33%33%33%33%
EBITDA Margin20%19%20%20%
EBIT Margin14%14%14%16%
Net Margin9%9%9%10%
FCF Margin12%9%12%10%

Quest Diagnostics Growth Rates

FY+1/FY23/2424/2525/2626/2727/2828/29
Revenue Growth9%7%12%9%
Gross Profit Growth9%6%13%9%
EBITDA Growth9%9%14%9%
EBIT Growth24%7%16%24%
Net Profit Growth27%2%14%27%
FCF Growth(11%)5%50%(11%)

Data powered by FactSet, Inc. and Morningstar, Inc.

Quest Diagnostics Operational KPIs

Quest Diagnostics' revenue per employee in the last FY averaged $0.2M, while opex per employee averaged $0.2M for the same period.

Quest Diagnostics' Rule of 40 is 28% (metric relevant for SaaS companies only, counted as combined revenue growth rate and EBITDA margin).

Quest Diagnostics' Rule of X is 42% (created by Bessemer, Rule of X is another metric to measure SaaS companies, ~1.5x stronger vs. the traditional Rule of 40, counted as revenue growth rate multiplied by 2.5 plus EBITDA margin).

Access forward-looking KPIs for Quest Diagnostics
LTMLast FY202320242025202620272028
Rule of 4025%28%---
Bessemer Rule of X33%42%---
Revenue per Employee-$0.2M---
Opex per Employee-$0.2M---
Opex to Revenue-86%19%19%86%

Data powered by FactSet, Inc. and Morningstar, Inc.

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Quest Diagnostics Competitors

Quest Diagnostics competitors include Labcorp, Sartorius, Guardant Health, GE HealthCare, Mettler Toledo, Revvity, Eurofins Scientific, Charles River, United Imaging and Pro Medicus.

Most Quest Diagnostics public comparables operate across Laboratory Services, Medical Imaging & Diagnostics, BioTech and HealthTech.

Last FYEV/RevenueEV/EBITDA
RevenueEBITDALast FYLTM2027ELast FYLTM2027E
Labcorp$14B$2B2.3x2.2x16.1x12.7x
Sartorius$3.3B$920M7.9x7.5x28.8x24.2x
Guardant Health$982M($408M)22.3x17.1x(53.7x)(114.0x)
GE HealthCare$21B$3.7B1.9x1.9x10.7x10.5x
Mettler Toledo$4B$1.2B8.6x8.2x27.8x26.2x
Revvity$2.9B$735M6.8x6.8x26.3x21.6x
Eurofins Scientific$8.2B$1.6B2.5x2.4x12.9x10.5x
Charles River$4B$406M4.3x4.4x42.4x17.3x

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Acquisitions by Quest Diagnostics

Quest Diagnostics has acquired 22 companies to date.

Last acquisition by Quest Diagnostics was on February 24th 2025. Quest Diagnostics acquired Spectra Laboratories for undisclosed valuation.

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Latest Acquisitions by Quest Diagnostics

Spectra Laboratories
OhioHealth
LifeLabs
PathAI
Description
Spectra Laboratories is a Rockleigh-based provider of renal-specific laboratory testing for dialysis patients, serving over 200,000 individuals monthly. The company performs assays for adequacy testing, adequacy markers, and infectious disease screening through its Spectra Clinical Research and Spectra Diagnostics divisions. Acquired by Fresenius Medical Care in 2008, Spectra Laboratories operates CAP-accredited labs processing peritoneal and hemodialysis samples for clinics across North America.
OhioHealth is a Columbus-based not-for-profit health system affiliated with the United Methodist Church. It operates 11 hospitals and over 200 ambulatory care sites serving 47 counties in central Ohio. Recognized by IBM Watson Health as a top large health system multiple times and by Fortune as a leading employer for 12 consecutive years, OhioHealth delivers care through hospitals, home health, and hospice services.
LifeLabs is a Canadian laboratory services provider conducting over 100 million tests annually across Ontario and British Columbia. The company operates more than 360 patient service centers with an extensive courier and mobile phlebotomy network. LifeLabs supports healthcare providers in diagnosing cancer, heart disease, neurological disorders, and allergies through specialized clinical testing. Toronto-headquartered since the 1970s, it employs thousands of trained staff committed to diagnostic innovation.
PathAI is a Boston-based provider of AI-powered pathology solutions founded in 2016. The platform automates tissue analysis for pharmaceutical research and clinical diagnostics, enabling precise cancer detection and drug development workflows. PathAI partners with biopharma leaders like Bristol Myers Squibb and integrates with major labs such as Quest Diagnostics across the United States and Europe. Its technology processes whole-slide images to quantify biomarkers, supporting over 40 clinical trials and routine pathology practices worldwide.
HQ CountryUnited StatesUnited StatesCanadaUnited States
HQ City
San Jose, CA
Columbus, OH
Toronto
Boston, MA
Deal Date24 Feb 202514 Oct 20243 Jul 20241 May 2024
Valuationundisclosedundisclosed$1B$100M
EV/Revenue
EV/EBITDA

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Investments by Quest Diagnostics

Quest Diagnostics has invested in 5 companies to date.

Latest investment by Quest Diagnostics was on June 5th 2025. Quest Diagnostics invested in PreciseDx in their $11M Series B round (EV/Revenue multiple available to Pro users).

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Latest Investments by Quest Diagnostics

PreciseDx
PreciseDx
Universal Diagnostics
Clinical Genomics Technologies
Description
PreciseDx is a provider of AI-driven cancer risk stratification assays using the Morphology Feature Array platform. The technology analyzes pathology slides to quantify morphological features, delivering patient-specific risk scores for prostate, breast, and lung cancers. Integrated into clinical workflows at U.S. hospitals, it guides oncologists in selecting therapies like active surveillance or aggressive treatment based on outcome predictions.
PreciseDx is a provider of AI-driven cancer risk stratification assays using the Morphology Feature Array platform. The technology analyzes pathology slides to quantify morphological features, delivering patient-specific risk scores for prostate, breast, and lung cancers. Integrated into clinical workflows at U.S. hospitals, it guides oncologists in selecting therapies like active surveillance or aggressive treatment based on outcome predictions.
Universal Diagnostics develops blood-based methylation assays for early cancer detection targeting colorectal, lung, pancreatic, liver, and gastric types via a single test. The Barcelona-based company processes samples in CLIA-certified labs using proprietary panels analyzed on its cloud platform. Its lead colorectal screening assay achieves 85% sensitivity for stage I detection, referring positives to colonoscopy. Universal Diagnostics partners with hospitals in Spain, Italy, and the US for validation studies involving 10,000 patients. Founded in 2017, it operates reference labs in Europe.
Clinical Genomics Technologies is a biotechnology company specializing in non-invasive diagnostics for colorectal cancer. Its GEMINI blood test identifies recurrence after surgery by detecting methylated DNA from BCAT1 and IKZF1 genes with high sensitivity and specificity. The firm holds more than 20 issued and pending patents covering its intellectual property portfolio. GEMINI launched commercially in the United States in 2016. Privately held, the company advances products for diagnosis and monitoring in oncology.
HQ CountryUnited StatesUnited StatesSpainAustralia
HQ City
New York City, NY
New York City, NY
Sevilla
Sydney
Deal Date5 Jun 202521 Aug 202420 Nov 20231 Jun 2018
RoundSeries BSeries BSeries BUndisclosed stage
Raised$11M$21M$70M$26M
InvestorsEventide; Quest Diagnostics; Labcorp; Merck Global Health Innovation Fund; Philips Health Technology Ventures; GenHenn VentureEventide; Quest Diagnostics; Labcorp; GenHenn VentureQuest Diagnostics; Adepa; CDTI Innovación's INNVIERTE programOneVentures; Quest Diagnostics
Valuationundisclosedundisclosedundisclosedundisclosed
EV/Revenue
EV/EBITDA

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About Quest Diagnostics

When was Quest Diagnostics founded?Quest Diagnostics was founded in 1990.
Where is Quest Diagnostics headquartered?Quest Diagnostics is headquartered in United States.
How many employees does Quest Diagnostics have?As of today, Quest Diagnostics has over 56K employees.
Who is the CEO of Quest Diagnostics?Quest Diagnostics' CEO is James E. Davis.
Is Quest Diagnostics publicly listed?Yes, Quest Diagnostics is a public company listed on NYSE.
What is the stock symbol of Quest Diagnostics?Quest Diagnostics trades under DGX ticker.
When did Quest Diagnostics go public?Quest Diagnostics went public in 1996.
Who are competitors of Quest Diagnostics?Quest Diagnostics main competitors include Labcorp, Sartorius, Guardant Health, GE HealthCare, Mettler Toledo, Revvity, Eurofins Scientific, Charles River, United Imaging, Pro Medicus.
What is the current market cap of Quest Diagnostics?Quest Diagnostics' current market cap is $26B.
What is the current revenue of Quest Diagnostics?Quest Diagnostics' last 12 months revenue is $12B.
What is the current revenue growth of Quest Diagnostics?Quest Diagnostics revenue growth (NTM/LTM) is 5%.
What is the current EV/Revenue multiple of Quest Diagnostics?Current revenue multiple of Quest Diagnostics is 2.7x.
What is the current EBITDA of Quest Diagnostics?Quest Diagnostics' last 12 months EBITDA is $2.3B.
What is Quest Diagnostics' EBITDA margin?Quest Diagnostics' last 12 months EBITDA margin is 20%.
What is the current EV/EBITDA multiple of Quest Diagnostics?Current EBITDA multiple of Quest Diagnostics is 13.9x.
What is the current FCF of Quest Diagnostics?Quest Diagnostics' last 12 months FCF is $1.2B.
What is Quest Diagnostics' FCF margin?Quest Diagnostics' last 12 months FCF margin is 10%.
What is the current EV/FCF multiple of Quest Diagnostics?Current FCF multiple of Quest Diagnostics is 25.9x.
How many companies Quest Diagnostics has acquired to date?As of October 2026, Quest Diagnostics has acquired 22 companies.
What was the largest acquisition by Quest Diagnostics?$1B acquisition of LifeLabs on 3rd July 2024 was the largest M&A Quest Diagnostics has done to date.
What companies Quest Diagnostics acquired?Quest Diagnostics acquired LifeLabs, Solstas Lab Partners, Haystack Oncology, Mercy (outreach laboratory unit), Med fusion, Summit Health, Clinical Laboratory Partners, Blueprint Genetics, Pack Health, PathAI, and 12 other companies.
In how many companies Quest Diagnostics has invested to date?As of October 2026, Quest Diagnostics has invested in 5 companies.
What was the last Quest Diagnostics investment?On 5th June 2025 Quest Diagnostics invested in PreciseDx, participating in a $11M Series B round, alongside Eventide, Labcorp, Merck Global Health Innovation Fund, Philips Health Technology Ventures, and GenHenn Venture.
In what companies Quest Diagnostics invested in?Quest Diagnostics invested in SomaLogic, Universal Diagnostics, Clinical Genomics Technologies, PreciseDx, and Lemonaid Health.

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