191.42
price down icon1.41%   -2.74
after-market After Hours: 191.60 0.18 +0.09%
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Quest Diagnostics Inc stock is traded at $191.42, with a volume of 877.72K. It is down -1.41% in the last 24 hours and down -4.15% over the past month. Quest Diagnostics is a leading independent provider of diagnostic testing, information, and services in the US. The company generates over 97% of its revenue through clinical testing, anatomic pathology, esoteric testing, and substance abuse testing with specimens collected at its national network of roughly 2,400 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.
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Previous Close:
$194.16
Open:
$193.17
24h Volume:
877.72K
Relative Volume:
0.90
Market Cap:
$21.19B
Revenue:
$11.04B
Net Income/Loss:
$1.04B
P/E Ratio:
21.85
EPS:
8.7626
Net Cash Flow:
$1.36B
1W Performance:
-3.72%
1M Performance:
-4.15%
6M Performance:
+2.17%
1Y Performance:
+14.47%
1-Day Range:
Value
$191.04
$194.28
1-Week Range:
Value
$189.72
$199.41
52-Week Range:
Value
$160.02
$213.50

Quest Diagnostics Inc Stock (DGX) Company Profile

Name
Name
Quest Diagnostics Inc
Name
Phone
(973) 520-2700
Name
Address
500 PLAZA DRIVE, SECAUCUS
Name
Employee
57,000
Name
Twitter
@QuestDX
Name
Next Earnings Date
2026-04-21
Name
Latest SEC Filings
Name
DGX's Discussions on Twitter

Compare DGX vs TMO, DHR, IDXX, A, WAT

Stocks Price Market Cap Revenue Net Income Cash Flow EPS
DGX icon
DGX
Quest Diagnostics Inc
191.42 21.49B 11.04B 1.04B 1.36B 8.7626
TMO icon
TMO
Thermo Fisher Scientific Inc
531.67 195.93B 44.56B 6.72B 6.29B 17.74
DHR icon
DHR
Danaher Corp
198.14 140.56B 24.57B 3.60B 5.26B 5.051
IDXX icon
IDXX
Idexx Laboratories Inc
580.76 46.39B 4.30B 1.06B 1.04B 13.08
A icon
A
Agilent Technologies Inc
119.77 34.02B 7.07B 1.29B 993.00M 4.5355
WAT icon
WAT
Waters Corp
326.20 32.49B 3.17B 642.63M 516.49M 10.77

Quest Diagnostics Inc Stock (DGX) Upgrades & Downgrades

Date Action Analyst Rating Change
Jan-30-26 Upgrade Barclays Equal Weight → Overweight
Aug-25-25 Downgrade Robert W. Baird Outperform → Neutral
Apr-02-25 Initiated Redburn Atlantic Buy
Mar-04-25 Downgrade Citigroup Buy → Neutral
Jan-06-25 Upgrade Leerink Partners Market Perform → Outperform
Dec-17-24 Upgrade Morgan Stanley Equal-Weight → Overweight
Dec-10-24 Resumed Jefferies Buy
Oct-23-24 Upgrade Robert W. Baird Neutral → Outperform
Aug-28-24 Resumed Evercore ISI In-line
Jul-10-24 Upgrade Citigroup Neutral → Buy
Feb-26-24 Initiated Leerink Partners Market Perform
Feb-07-24 Upgrade Jefferies Hold → Buy
Jan-03-24 Initiated Barclays Equal Weight
Dec-12-23 Upgrade BofA Securities Neutral → Buy
Jun-29-23 Initiated Piper Sandler Neutral
May-02-23 Downgrade BofA Securities Buy → Neutral
Apr-03-23 Upgrade Citigroup Sell → Neutral
Jan-23-23 Initiated Evercore ISI In-line
Nov-17-22 Downgrade Citigroup Neutral → Sell
Aug-22-22 Resumed Morgan Stanley Equal-Weight
Apr-04-22 Downgrade Citigroup Buy → Neutral
Feb-23-22 Downgrade UBS Buy → Neutral
Feb-02-22 Downgrade Jefferies Buy → Hold
Jan-28-22 Downgrade Deutsche Bank Buy → Hold
May-04-21 Upgrade UBS Neutral → Buy
Mar-12-21 Downgrade Robert W. Baird Outperform → Neutral
Oct-21-20 Upgrade Argus Hold → Buy
Jul-29-20 Upgrade KeyBanc Capital Markets Sector Weight → Overweight
Jul-14-20 Upgrade BofA Securities Neutral → Buy
Jun-09-20 Upgrade Wells Fargo Underweight → Equal Weight
Jun-02-20 Upgrade Deutsche Bank Hold → Buy
Apr-28-20 Upgrade Morgan Stanley Equal-Weight → Overweight
Apr-27-20 Upgrade Citigroup Neutral → Buy
Apr-27-20 Upgrade Wolfe Research Underperform → Peer Perform
Mar-27-20 Downgrade Morgan Stanley Overweight → Equal-Weight
Jan-08-20 Initiated Wells Fargo Underweight
Jan-07-20 Downgrade Barclays Overweight → Equal Weight
Dec-19-19 Upgrade BofA/Merrill Underperform → Neutral
Jul-15-19 Downgrade Goldman Neutral → Sell
Apr-02-19 Upgrade Jefferies Hold → Buy
Mar-18-19 Resumed Credit Suisse Neutral
Jan-31-19 Downgrade Argus Buy → Hold
Jan-17-19 Initiated UBS Neutral
Jan-03-19 Downgrade BofA/Merrill Neutral → Underperform
Dec-03-18 Downgrade BofA/Merrill Buy → Neutral
Nov-30-18 Downgrade Goldman Buy → Neutral
View All

Quest Diagnostics Inc Stock (DGX) Latest News

pulisher
09:19 AM

Here's How Quest Diagnostics Is Placed Ahead of Q1 Earnings - Yahoo Finance

09:19 AM
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03:40 AM

Quest Diagnostics Mirrors S&P 500 Index Sector Momentum Clearly - Kalkine Media

03:40 AM
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Apr 14, 2026

Baird Adjusts Price Target on Quest Diagnostics to $224 From $219, Maintains Neutral Rating - marketscreener.com

Apr 14, 2026
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Apr 14, 2026

Quest Diagnostics (DGX) Reports Next Week: Wall Street Expects Earnings Growth - Yahoo Finance

Apr 14, 2026
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Apr 10, 2026

Quest Diagnostics Inc (DGX) Stock Down 3.2% but Still Overvalued -- GF Score: 81/100 - GuruFocus

Apr 10, 2026
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Apr 10, 2026

Quest Diagnostics Inc. stock underperforms Friday when compared to competitors - MarketWatch

Apr 10, 2026
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Apr 08, 2026

Quest Diagnostics Inc. stock rises Wednesday, still underperforms market - MarketWatch

Apr 08, 2026
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Apr 08, 2026

Evercore ISI Adjusts Price Target on Quest Diagnostics to $210 From $220, Maintains In Line Rating - marketscreener.com

Apr 08, 2026
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Apr 07, 2026

Quest Diagnostics Inc. stock underperforms Tuesday when compared to competitors - MarketWatch

Apr 07, 2026
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Apr 06, 2026

Quest Diagnostics Inc. stock underperforms Monday when compared to competitors despite daily gains - MarketWatch

Apr 06, 2026
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Apr 06, 2026

Executive pay, performance and board votes at Quest Diagnostics (NYSE: DGX) - Stock Titan

Apr 06, 2026
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Apr 06, 2026

5,900 Shares in Quest Diagnostics Incorporated $DGX Purchased by Capital Management Associates Inc - MarketBeat

Apr 06, 2026
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Apr 05, 2026

Quest Diagnostics Incorporated: - marketscreener.com

Apr 05, 2026
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Apr 05, 2026

A1ZYEH Latest News and Headlines - TradingView — Track All Markets

Apr 05, 2026
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Apr 03, 2026

Drug Screening Market Trends 2026–2031: Chromatography and Mass Spectrometry Held a 44.77% Share in 2025 Amid Growing Demand for Advanced Testing, Reports Mordor Intelligence - GlobeNewswire Inc.

Apr 03, 2026
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Apr 02, 2026

Quest Diagnostics (DGX) director defers pay into 198 phantom stock units - Stock Titan

Apr 02, 2026
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Apr 02, 2026

Quest Diagnostics Incorporated (DGX) Stock Price, News, Quote & History - Yahoo! Finance Canada

Apr 02, 2026
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Mar 31, 2026

A Look At Quest Diagnostics (DGX) Valuation As Investors Reassess The Stock Without A Clear News Catalyst - Yahoo Finance

Mar 31, 2026
pulisher
Mar 31, 2026

Here's Why Quest Diagnostics (DGX) is a Strong Value Stock - Yahoo Finance

Mar 31, 2026
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Mar 30, 2026

U.S. High Court Won’t Review FCA Suit Against Quest Alleging Fraudulent Testing - Mealey's

Mar 30, 2026
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Mar 30, 2026

Justices Pass On FCA Suit Alleging Quest Diagnostics Fraud - Law360

Mar 30, 2026
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Mar 30, 2026

Eastern Bank Takes Position in Quest Diagnostics Incorporated $DGX - MarketBeat

Mar 30, 2026
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Mar 30, 2026

Assenagon Asset Management S.A. Buys 19,361 Shares of Quest Diagnostics Incorporated $DGX - marketbeat.com

Mar 30, 2026
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Mar 27, 2026

Quest Diagnostics Inc. stock outperforms competitors despite losses on the day - MarketWatch

Mar 27, 2026
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Mar 27, 2026

Vanguard (DGX) amends 13G, reports 0 shares after Jan 12, 2026 realignment - Stock Titan

Mar 27, 2026
pulisher
Mar 27, 2026

Quest Diagnostics Earnings Preview: What to Expect - Yahoo Finance

Mar 27, 2026
pulisher
Mar 26, 2026

Quest Diagnostics Incorporated $DGX Shares Acquired by SG Americas Securities LLC - MarketBeat

Mar 26, 2026
pulisher
Mar 25, 2026

DGX SEC FilingsQuest Diagnostics Inc 10-K, 10-Q, 8-K Forms - Stock Titan

Mar 25, 2026
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Mar 24, 2026

Quest Diagnostics Incorporated (NYSE:DGX) Given Consensus Rating of "Moderate Buy" by Brokerages - MarketBeat

Mar 24, 2026
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Mar 22, 2026

Quest Diagnostics (DGX) down 4.2% since last earnings report: Can it rebound? - MSN

Mar 22, 2026
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Mar 22, 2026

Union Bancaire Privee UBP SA Acquires 8,744 Shares in Quest Diagnostics - National Today

Mar 22, 2026
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Mar 22, 2026

8,744 Shares in Quest Diagnostics Incorporated $DGX Acquired by Union Bancaire Privee UBP SA - MarketBeat

Mar 22, 2026
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Mar 22, 2026

How Guardant’s Shield Blood Test Rollout Through Quest Diagnostics (DGX) Has Changed Its Investment Story - Yahoo Finance

Mar 22, 2026
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Mar 20, 2026

Paradiem LLC Buys New Holdings in Quest Diagnostics Incorporated $DGX - MarketBeat

Mar 20, 2026
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Mar 19, 2026

Quest Diagnostics to Report Q1 2026 Financial Results on April 21 - intellectia.ai

Mar 19, 2026
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Mar 19, 2026

Quest Diagnostics to Release First Quarter Financial Results on April 21, 2026 - GuruFocus

Mar 19, 2026
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Mar 19, 2026

Quest Diagnostics schedules April 21 earnings release, 8:30 a.m. call - Stock Titan

Mar 19, 2026
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Mar 19, 2026

How Is Quest Diagnostics’ Stock Performance Compared to Other Healthcare Stocks? - Yahoo Finance

Mar 19, 2026
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Mar 19, 2026

Davis Selected Advisers Acquires 7,192 Shares of Quest Diagnostics Incorporated $DGX - MarketBeat

Mar 19, 2026
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Mar 18, 2026

Quest Diagnostics Inc. stock underperforms Wednesday when compared to competitors - MarketWatch

Mar 18, 2026
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Mar 18, 2026

Zacks Industry Outlook Features Quest Diagnostics, DaVita, Option Care Health, and Addus HomeCare - Bitget

Mar 18, 2026
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Mar 18, 2026

Zacks Industry Outlook Highlights Quest Diagnostics, DaVita, Option Care Health and Addus HomeCare - Zacks Investment Research

Mar 18, 2026
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Mar 18, 2026

Danica Pension Livsforsikringsaktieselskab Buys Shares of 70,846 Quest Diagnostics Incorporated $DGX - MarketBeat

Mar 18, 2026
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Mar 18, 2026

Achmea Investment Management B.V. Grows Holdings in Quest Diagnostics Incorporated $DGX - MarketBeat

Mar 18, 2026
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Mar 17, 2026

4 Outpatient Home Health Stocks Gaining Attention Amid Market Shifts - TradingView

Mar 17, 2026
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Mar 17, 2026

Quest Diagnostics Incorporated $DGX Shares Sold by Chevy Chase Trust Holdings LLC - MarketBeat

Mar 17, 2026
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Mar 17, 2026

A Look At Quest Diagnostics (DGX) Valuation After Recent Share Price Softness - Yahoo Finance

Mar 17, 2026
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Mar 16, 2026

Aquatic Capital Management LLC Has $8.06 Million Holdings in Quest Diagnostics Incorporated $DGX - MarketBeat

Mar 16, 2026
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Mar 15, 2026

EdgePoint Investment Group Inc. Grows Position in Quest Diagnostics Incorporated $DGX - MarketBeat

Mar 15, 2026
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Mar 15, 2026

CSM Advisors LLC Sells 20,078 Shares of Quest Diagnostics Incorporated $DGX - MarketBeat

Mar 15, 2026
pulisher
Mar 15, 2026

Crawford Investment Counsel Inc. Purchases 9,473 Shares of Quest Diagnostics Incorporated $DGX - MarketBeat

Mar 15, 2026

Quest Diagnostics Inc Stock (DGX) Financials Data

Revenue

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Net Income

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Cash Flow

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EPS

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LH LH
$266.73
price down icon 0.80%
MTD MTD
$1,315.85
price down icon 1.91%
$207.19
price down icon 3.47%
IQV IQV
$178.10
price up icon 1.61%
WAT WAT
$326.20
price down icon 1.44%
Cap:     |  Volume (24h):