DGXQuest Diagnostics Inc.

CSNew York Stock Exchange (XNYS)·USD

Identity

Security key: 14217
Ticker: DGX
Type: CS — Common Stock
Exchange: New York Stock Exchange(XNYS)
Venue group: NYSE
Operating MIC: XNYS
Market: stocks
Locale: us
Currency: USD
Listed: 1996-12-17
Round lot: 100
Active: Yes
Last seen in a load: 2026-08-14 20:49
Vendor updated: 2026-08-13 06:09
Ticker root / suffix: DGX

Detail

Enriched 2026-08-14 20:47

Market cap: $26,243,473,807.2
Shares outstanding (class): 110,373,360
Shares outstanding (weighted): 110,373,360
SIC: 8071 SERVICES-MEDICAL LABORATORIES
Employees: 57,000
Location: SECAUCUS, NJ
Homepage: https://www.questdiagnostics.com
Description: 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.

Market cap and share counts drift.

Funds holding this security

411 funds · 417 positions · $6.04B reported value, as of 2026-03-31

All holders →

Fund	Ticker	Position value	% of fund	Balance	Match
VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS	VTI	$683.60M	0.03%	3,488,127 NS	FIGI
VANGUARD 500 INDEX FUND VANGUARD INDEX FUNDS	VOO	$547.54M	0.04%	2,793,834 NS	FIGI
VANGUARD MID-CAP INDEX FUND VANGUARD INDEX FUNDS	VO	$465.00M	0.23%	2,372,698 NS	FIGI
iShares Core S&P 500 ETF iShares Trust	IVV	$277.22M	0.04%	1,414,554 NS	FIGI
Victory Sycamore Established Value Fund Victory Portfolios	—	$252.23M	1.67%	1,287,000 NS	FIGI
N/A —	—	$249.87M	0.04%	1,274,959 NS	FIGI
JPMorgan Equity Income Fund JPMorgan Trust II	—	$233.67M	0.57%	1,192,326 NS	FIGI
T. Rowe Price Dividend Growth Fund, Inc. T. ROWE PRICE DIVIDEND GROWTH FUND, INC.	—	$224.42M	0.99%	1,145,100 NS	FIGI
Disciplined Value Fund John Hancock Funds III	—	$208.72M	1.23%	1,064,982 NS	FIGI
VANGUARD VALUE INDEX FUND VANGUARD INDEX FUNDS	VTV	$199.19M	0.09%	1,016,379 NS	FIGI
T. Rowe Price Value Fund, Inc. T. ROWE PRICE VALUE FUND, INC.	—	$180.91M	0.57%	923,088 NS	FIGI
Disciplined Value Mid Cap Fund John Hancock Funds III	—	$169.89M	0.78%	866,867 NS	FIGI
T. Rowe Price U.S. Large-Cap Core Fund, Inc. T. ROWE PRICE U.S. LARGE-CAP CORE FUND, INC.	—	$168.55M	1.02%	860,012 NS	FIGI
JPMorgan Mid Cap Value Fund J.P. Morgan Fleming Mutual Fund Group, Inc.	—	$159.52M	1.47%	813,952 NS	FIGI
State Street(R) Health Care Select Sector SPDR(… SELECT SECTOR SPDR TRUST	XLV	$156.89M	0.41%	800,521 NS	FIGI

How positions resolve to the securities master. FIGI_COMPOSITE is exact identifier equality — both sides got the FIGI from Bloomberg. TICKER is a narrow fallback used only where the master row carries no FIGI at all (2,389 rows do not, disproportionately Irish-domiciled US listings like LIN and ACN). Roughly 22% of all positions resolve to the master.

Funds holding this security

Identifiers

master.security_identifier

TICKERDGX
FIGI_COMPOSITEBBG000BN84F3
FIGI_SHARE_CLASSBBG001S9GX43
CIK0001022079
ISINUS74834L1008
Resolved through OpenFIGI from a holdings ISIN, not supplied by the securities vendor.

Identifiers

Classification

classification.v_security_classification

Asset class: Equity
Sector: Health Care
Industry: Health Care Providers
Source: LLMunreviewed
Self-reported confidence: 0.95
Model: deepseek
Rationale: Quest Diagnostics operates medical diagnostic laboratories, which are healthcare providers.

Classifications are unreviewed model output. All 5,771 assignments carry source = LLM and is_reviewed = false. Confidence is the model’s own estimate and is not calibrated — it clustered at 0.90–0.98 across the whole first pass, including rows that later proved wrong. Use it to order a review queue, not as a probability. Two share classes of one issuer can disagree.

Classification

Fund data

Not linked to a fund series.

Either this is not a fund, or it is one the SEC share-class snapshot cannot reach — commodity trusts and notes have no series ID at all.