VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 1, 2026

Stock Comparison

IDEXX Laboratories, Inc. vs PACCAR Inc

Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.

IDEXX Laboratories, Inc.

IDXX · NASDAQ

Market cap (USD)$54.9B
SectorHealthcare
CountryUS
Data as of2025-12-31
Moat score
82/ 100

Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.

Full stock profile

Dive deeper into IDEXX Laboratories, Inc.'s moat claims, evidence, and risks.

View IDXX analysis

PACCAR Inc

PCAR · NASDAQ

Market cap (USD)$57.5B
SectorIndustrials
CountryUS
Data as of2026-01-01
Moat score
75/ 100

Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.

Full stock profile

Dive deeper into PACCAR Inc's moat claims, evidence, and risks.

View PCAR analysis

Comparison highlights

  • Moat score gap: IDEXX Laboratories, Inc. leads (82 / 100 vs 75 / 100 for PACCAR Inc).
  • Segment focus: IDEXX Laboratories, Inc. has 4 segments (91.7% in Companion Animal Group); PACCAR Inc has 3 segments (73.8% in Truck).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Strong vs Moderate.
  • Moat breadth: IDEXX Laboratories, Inc. has 5 moat types across 3 domains; PACCAR Inc has 8 across 3.

Primary market context

IDEXX Laboratories, Inc.

Companion Animal Group

Market

Veterinary diagnostics and practice management software for companion animals

Geography

Global

Customer

Veterinary practices, corporate veterinary groups, and reference laboratories

Role

Diagnostics platform owner (in-clinic instruments + consumables) and reference lab/service provider; practice management software provider

Revenue share

91.7%

PACCAR Inc

Truck

Market

Commercial truck OEM (heavy- and medium-duty)

Geography

Global (U.S./Canada and Europe primary)

Customer

Fleets, owner-operators, dealers

Role

OEM / manufacturer

Revenue share

73.8%

Side-by-side metrics

IDEXX Laboratories, Inc.
PACCAR Inc
Ticker / Exchange
IDXX - NASDAQ
PCAR - NASDAQ
Market cap (USD)
$54.9B
$57.5B
Sector
Healthcare
Industrials
HQ country
US
US
Primary segment
Companion Animal Group
Truck
Market structure
Oligopoly
Oligopoly
Market share
n/a
30%-31% (reported)
HHI estimate
n/a
n/a
Pricing power
Strong
Moderate
Moat score
82 / 100
75 / 100
Moat domains
Demand, Supply, Legal
Demand, Supply, Financial
Last update
2025-12-31
2026-01-01

Moat coverage

Shared moat types

Installed Base ConsumablesPhysical Network Density

IDEXX Laboratories, Inc. strengths

Data Workflow LockinRegulated Standards PipeCompliance Advantage

PACCAR Inc strengths

Brand TrustService Field NetworkCapex Knowhow ScaleDistribution ControlCost Of Capital AdvantageCaptive finance integration

Segment mix

IDEXX Laboratories, Inc. segments

Full profile >

Companion Animal Group

Oligopoly

91.7%

Water Quality Products

Oligopoly

4.7%

Livestock, Poultry and Dairy

Competitive

3.1%

Other (OPTI Medical and out-licensing)

Competitive

0.4%

PACCAR Inc segments

Full profile >

Truck

Oligopoly

73.8%

Parts

Competitive

19.8%

Financial Services

Competitive

6.2%

Want the full wide moat stocks list?

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Curation & Accuracy

This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).

Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.