DGX
Quest Diagnostics IncorporatedHealthcare · $25.8B market cap
Verdict
Share price
$233.33
close of Oct 3, 2026
Fair value
$181.16
Sticker Price
Payback Price
$72.47
buy price
DGX is Overpriced: at $233.33 it trades 29% above its fair value of $181.16. Its buy price (Payback Price) is $72.47, 69% below today's price. Business quality is limited: none of the 5 key numbers clears the 10% bar.
How we valued it
Owner Earnings. Earnings grow slowly (under 7% a year), but cash flow is steady, so we value it on its cash flow instead of its earnings.
Business quality
0 of 5 clear the 10% bar. What are the Big Five?
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2 of the investors we track hold DGX. In Q2 2026, 1 added and 1 sold out. Who we track
Insider activity
Since Jul 1, 2026: no open-market purchases, 5 sales worth $8.3M and 11 other filings (stock awards, tax withholding and similar). Why purchases matter
Sales
Davis J. E.
CEO and President · 2026-09-01
Sold
$2.4M
PREVOZNIK MICHAEL E
SVP & General Counsel · 2026-08-28
Sold
$105K
PREVOZNIK MICHAEL E
SVP & General Counsel · 2026-08-28
Sold
$1.5M
PREVOZNIK MICHAEL E
SVP & General Counsel · 2026-08-28
Sold
$3.9M
DELANEY MARK E
SVP & Chief Commercial Officer · 2026-07-28
Sold
$376K
Other filings
PREVOZNIK MICHAEL E
SVP & General Counsel · 2026-08-28
G-Gift
1,000 shares
PREVOZNIK MICHAEL E
SVP & General Counsel · 2026-08-28
Option exercise
$2.5M
DELANEY MARK E
SVP & Chief Commercial Officer · 2026-07-22
L-Small
$7K
Lassiter Wright III
director · 2026-07-22
L-Small
$1K
SAMAD SAM
Executive Vice President & CFO · 2026-07-22
Award
$21K
Show all 11 other filingsShow fewer
MAIN TIMOTHY L
director · 2026-07-22
L-Small
$4K
Plewman Patrick
SVP for Diagnostic Services · 2026-07-22
L-Small
$10K
KUPPUSAMY KARTHIK
SVP, Clinical Solutions · 2026-07-22
L-Small
$8K
Gregg Vicky B
director · 2026-07-22
Award
$15K
CARTER ROBERT B
director · 2026-07-22
L-Small
$2K
WENTWORTH TIMOTHY C
director · 2026-07-01
Award
144 shares
About Quest Diagnostics Incorporated
Quest Diagnostics Incorporated, founded in 1967 and headquartered in Secaucus, New Jersey, is a premier provider of diagnostic testing, information, and related services, serving clients both domestically and internationally. Its core business involves the development and provision of diverse diagnostic information services, such as routine, advanced clinical, and anatomic pathology testing. While primarily…
Medical - Diagnostics & Research
Fair value and Payback Price are estimates from the company's reported financials, not investment advice. Prices as of the close of Oct 3, 2026. How the Payback Price works