Quest Diagnostics Incorporated (DGX) Stock Overview

NYSE · Healthcare · Diagnostics & Research

✓ Sourced directly from Yahoo Finance · Checked for accuracy at every rebuild · Snapshot: 6 September 2026

$237.14
Price
$26.17B
Market Cap
25.20
P/E Ratio
$9.41
EPS
$247.19
52-Week High
$171.18
52-Week Low
1.44%
Dividend Yield
USD
Currency

About Quest Diagnostics Incorporated

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…

Source: Yahoo Finance

Sector & Industry

Quest Diagnostics Incorporated operates in the Healthcare sector, within the Diagnostics & Research industry group. It is listed on the NYSE exchange.

Quest Diagnostics Incorporated at a Glance

CompanyQuest Diagnostics Incorporated
TickerDGX
ExchangeNYSE
CurrencyUSD
Price$237.14
Market cap$26.17B
P/E ratio (trailing)25.20
EPS (trailing)$9.41
52-week high$247.19
52-week low$171.18
Dividend yield1.44%
Ex-dividend date06 Oct 2026
Beta0.55
Return on equity (ROE)14.60%
Debt-to-equity81.07%
Average volume955,131
Shares outstanding110.37M
SectorHealthcare
IndustryDiagnostics & Research
Employees46,000
CountryUnited States

Investing Essentials

As an Amazon Associate we earn from qualifying purchases. Links below are affiliate links.

AMAZON One Up On Wall Street

Peter Lynch on how everyday investors can spot winners before the professionals do.

Check Price →
AMAZON Healthcare Investing Reads

Evaluating pharma pipelines, devices and healthcare economics.

Check Price →
AMAZON The Intelligent Investor

Benjamin Graham's classic on value investing — the book Warren Buffett calls the best ever written on the subject.

Check Price →
Disclaimer: This page is for reference only. Not financial advice. Data is a snapshot and may be out of date. Always verify with a licensed broker.

Frequently Asked Questions

What is Quest Diagnostics Incorporated's current P/E ratio?
Quest Diagnostics Incorporated (DGX) has a trailing P/E ratio of 25.20 as of our 6 September 2026 data snapshot. Learn what the P/E ratio means →
What is Quest Diagnostics Incorporated's market capitalisation?
Quest Diagnostics Incorporated's market cap is $26.17B based on our latest snapshot. See how it ranks by market cap →
What is DGX's 52-week range?
Over the past 52 weeks, DGX has traded between $171.18 and $247.19. What does the 52-week range mean? →
How volatile is Quest Diagnostics Incorporated compared to the market?
Quest Diagnostics Incorporated has a beta of 0.55, meaning it has historically moved less than the broader market. What does beta measure? →
Does Quest Diagnostics Incorporated pay a dividend?
Quest Diagnostics Incorporated's trailing annual dividend yield is 1.44%. Compare with other high-yield stocks →
What exchange is DGX listed on?
DGX is listed on the NYSE. Browse all NYSE-listed stocks →
What sector is Quest Diagnostics Incorporated in?
Quest Diagnostics Incorporated is classified in the Healthcare sector. Compare with Healthcare peers →

Working out potential returns or position sizes? Our payout and odds calculators handle the maths.

Many readers keep a stock investing journal to log positions and theses alongside pages like this one, and a dedicated financial calculator to hand for quick valuation maths.

Recommended Reading & Tools

AMAZON A Random Walk Down Wall Street

Burton Malkiel's evidence-based guide to markets, indexing and long-term strategy.

Check Price →
AMAZON The Psychology of Money

Morgan Housel's short lessons on behaviour, luck and long-term wealth.

Check Price →
AMAZON Common Stocks and Uncommon Profits

Philip Fisher on what makes a business worth owning for the long term.

Check Price →
DGX also appears in: S&P 500

Related Healthcare Stocks