CLBCore Laboratories Inc.

CSNew York Stock Exchange (XNYS)·USD

Identity

Security key: 13455
Ticker: CLB
Type: CS — Common Stock
Exchange: New York Stock Exchange(XNYS)
Venue group: NYSE
Operating MIC: XNYS
Market: stocks
Locale: us
Currency: USD
Listed: 1995-09-21
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: CLB

Detail

Enriched 2026-08-14 20:47

Market cap: $571,262,547.9
Shares outstanding (class): 45,884,542
Shares outstanding (weighted): 45,884,542
SIC: 1389 OIL & GAS FIELD SERVICES, NEC
Employees: 3,300
Location: HOUSTON, TX
Homepage: https://www.corelab.com
Description: Core Laboratories Inc is a providers of proprietary and patented reservoir description and production enhancement services and products to the oil and gas industry, through client relationships. The company operates its business in two segments; Reservoir Description, and Production Enhancement. It provides data and analytics to aid well operators in determining optimal methods for recovering, processing, and refining hydrocarbons from a well. It also manufactures the associated lab equipment for its services. The company generates majority of its revenue from Reservoir Description segment.

Market cap and share counts drift.

Funds holding this security

108 funds · 108 positions · $277.84M reported value, as of 2026-03-31

All holders →

Fund	Ticker	Position value	% of fund	Balance	Match
Ariel Fund Ariel Investment Trust	—	$90.86M	3.55%	5,411,351 NS	FIGI
iShares Core S&P Small-Cap ETF iShares Trust	IJR	$46.89M	0.05%	2,792,810 NS	FIGI
Ariel Appreciation Fund Ariel Investment Trust	—	$25.41M	2.90%	1,513,465 NS	FIGI
iShares Russell 2000 ETF iShares Trust	IWM	$19.37M	0.03%	1,153,420 NS	FIGI
VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS	VTI	$17.89M	0.00%	1,065,400 NS	FIGI
VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS	VXF	$8.76M	0.01%	521,498 NS	FIGI
iShares S&P Small-Cap 600 Value ETF iShares Trust	IJS	$7.63M	0.10%	454,192 NS	FIGI
State Street(R) SPDR(R) Portfolio S&P 600(TM) S… SPDR SERIES TRUST	SPSM	$7.12M	0.05%	424,254 NS	FIGI
iShares Russell 2000 Value ETF iShares Trust	IWN	$6.80M	0.05%	405,039 NS	FIGI
VanEck Oil Services ETF VanEck ETF Trust	OIH	$6.18M	0.26%	368,210 NS	FIGI
VANGUARD TAX-MANAGED SMALL-CAP FUND VANGUARD TAX-MANAGED FUNDS	—	$4.55M	0.05%	271,152 NS	FIGI
State Street(R) SPDR(R) S&P(R) Oil & Gas Equipm… SPDR SERIES TRUST	XES	$4.27M	0.95%	254,428 NS	FIGI
State Street(R) SPDR(R) S & P 600(TM) Small Cap… SPDR SERIES TRUST	SLYV	$4.08M	0.10%	242,804 NS	FIGI
Royce Small-Cap Total Return Fund ROYCE FUND	—	$2.89M	0.34%	172,173 NS	FIGI
Heartland Value Fund HEARTLAND GROUP INC.	—	$2.52M	0.26%	150,000 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

TICKERCLB
FIGI_COMPOSITEBBG01GG28WR3
FIGI_SHARE_CLASSBBG01GG28WT1
CIK0001958086
ISINUS21867A1051
Resolved through OpenFIGI from a holdings ISIN, not supplied by the securities vendor.

Identifiers

Classification

classification.v_security_classification

Asset class: Equity
Sector: Energy
Industry: Energy Equipment & Services
Source: LLMunreviewed
Self-reported confidence: 0.8
Model: deepseek
Rationale: Core Laboratories provides oilfield services, fitting under energy equipment and services.

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.