Stock listing

NYSE:DGX Quest Diagnostics Incorporated Stock

Home listing (NYSE) of Quest Diagnostics Incorporated

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Share price · NYSE:DGX

$235.27 USD +0.27 (+0.1%)

Delayed at least 15 minutes · 3:45 PM EDT, Oct 19, 2026

Past year +23.4% · daily closes, Oct 20, 2025 – Oct 16, 2026, adjusted for splits
Day range so far
$233.82 – $235.99 USDDelayed at least 15 minutes · 3:45 PM EDT, Oct 19, 2026
Volume
518,345 sharesDelayed at least 15 minutes · 3:45 PM EDT, Oct 19, 2026
Market value
$25.97B USDDelayed at least 15 minutes · 3:45 PM EDT, Oct 19, 2026 · price × 110.4M shares outstanding
52-week range
$171.18 – $248.84 USDLowest and highest trades, Oct 20, 2025 – Oct 19, 2026
Quest Diagnostics Incorporated logo
Ticker
NYSE:DGX
Asset type
Stock
Sector
Health care
Industry
Health care services
Exchange
NYSE
Currency
USD

What changed lately

Calls

Upcoming

  • Quest Diagnostics (NYSE:DGX) Q3 2026 Earnings Call

    Thu, Oct 22, 2026 · 8:30 AM ET

    Register

Replays

  • Quest Diagnostics (NYSE:DGX) Q2 2026 Earnings Call

    Thu, Jul 23, 2026 · 8:30 AM ET

    Watch Transcript

  • Quest Diagnostics (NYSE:DGX) Q1 2026 Earnings Call

    Tue, Apr 21, 2026 · 8:30 AM ET

    Watch Transcript

  • Quest Diagnostics (NYSE:DGX) Q4 2025 Earnings Call

    Tue, Feb 10, 2026 · 8:30 AM ET

    Watch Transcript

Latest news

Haystack MRD® Demonstrates Robust Clinical Performance in Specimen Cohort from the Landmark DYNAMIC Colorectal Cancer Trials

Oct 1, 2026

Quest Diagnostics to Release Third Quarter Financial Results on October 22, 2026

Sep 22, 2026

Nearly 1 in 3 Patients with Suspected Lyme Disease are Co-Positive for Other Tick-Borne Pathogens, Finds Study by Quest Diagnostics

Sep 21, 2026

Nine in 10 Voters Express Concern That Medicare Lab Payment Cuts Will Harm Patient Access to Diagnostic Lab Testing, Finds National Survey from Quest Diagnostics

Sep 16, 2026

Apple Health app Users to be Able to Order Labs from Quest Diagnostics

Sep 9, 2026

Quest Diagnostics to Speak at the Baird 2026 Global Healthcare Conference

Aug 25, 2026

Humanity Brings Biological Age Analysis to the U.S. Through questhealth.com

Aug 25, 2026

Quest Diagnostics to Speak at the Morgan Stanley 24th Annual Global Healthcare Conference

Aug 24, 2026

Quest Diagnostics to Offer FDA-Cleared Roche pTau217 Blood Test to Assess Alzheimer's Disease Pathology

Aug 24, 2026

Bacterial Vaginosis Linked to Increased STI Co-Infection, Finds National Study of 1.5 Million Women from Quest Diagnostics

Jul 30, 2026

All Quest Diagnostics Incorporated news

Decks

Quest Diagnostics Incorporated on 6ix

Sector
Health care
Industry
Health care services
News releases
47 in the last 12 months · 73 in all · newest Oct 1, 2026 · oldest 2025
Calls
26 calls with a replay · 26 with a transcript · latest Jul 23, 2026
Decks
70 decks · latest Jul 23, 2026

Where Quest Diagnostics Incorporated is listed

ListingExchangeCountryCurrency
NYSE:DGX · Home listing · This pageNYSEUnited StatesUSD
Tradegate:QDITradegateGermanyEUR
gettex:QDIgettexGermanyEUR
Frankfurt:QDIFrankfurtGermanyEUR
BMV:DGXBMVMexicoMXN
LS Exchange:904533LS ExchangeGermanyEUR
Lang & Schwarz:904533Lang & SchwarzGermanyEUR
LSE:0KSXLSEUnited KingdomUSD
BOATS:DGXBOATSUnited StatesUSD
Milan:1QDXMilanItalyEUR
BIVA:DGXBIVAMexicoMXN
B3:Q1UE34B3BrazilBRL
Munich:QDIMunichGermanyEUR
Dusseldorf:QDIDusseldorfGermanyEUR
Hanover:QDIHanoverGermanyEUR
BX Swiss:QDIBX SwissSwitzerlandCHF
Stuttgart:QDIStuttgartGermanyEUR

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