VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, January 7, 2026

Stock Comparison

IDEXX Laboratories, Inc. vs Transurban Group

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

IDEXX Laboratories, Inc.

IDXX · NASDAQ

Market cap (USD)$54.5B
Gross margin (TTM)61.7%
Operating margin (TTM)31.3%
Net margin (TTM)24.7%
SectorHealthcare
IndustryMedical - Diagnostics & Research
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

Transurban Group

TCL · Australian Securities Exchange

Market cap (USD)$42.6B
Gross margin (TTM)43.4%
Operating margin (TTM)39.4%
Net margin (TTM)5.8%
SectorIndustrials
IndustryIndustrial - Infrastructure Operations
CountryAU
Data as of2026-01-04
Moat score
91/ 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 Transurban Group's moat claims, evidence, and risks.

View TCL analysis

Comparison highlights

  • Moat score gap: Transurban Group leads (91 / 100 vs 82 / 100 for IDEXX Laboratories, Inc.).
  • Segment focus: IDEXX Laboratories, Inc. has 4 segments (91.7% in Companion Animal Group); Transurban Group has 4 segments (49.5% in Sydney toll roads).
  • Primary market structure: Oligopoly vs Quasi-Monopoly. Pricing power: Strong vs Moderate.
  • Moat breadth: IDEXX Laboratories, Inc. has 5 moat types across 3 domains; Transurban Group has 3 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%

Transurban Group

Sydney toll roads

Market

Urban toll-road concessions (Sydney)

Geography

Sydney, New South Wales, Australia

Customer

Motorists and commercial fleet operators

Role

Concessionaire / operator and developer

Revenue share

49.5%

Side-by-side metrics

IDEXX Laboratories, Inc.
Transurban Group
Ticker / Exchange
IDXX - NASDAQ
TCL - Australian Securities Exchange
Market cap (USD)
$54.5B
$42.6B
Gross margin (TTM)
61.7%
43.4%
Operating margin (TTM)
31.3%
39.4%
Net margin (TTM)
24.7%
5.8%
Sector
Healthcare
Industrials
Industry
Medical - Diagnostics & Research
Industrial - Infrastructure Operations
HQ country
US
AU
Primary segment
Companion Animal Group
Sydney toll roads
Market structure
Oligopoly
Quasi-Monopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Strong
Moderate
Moat score
82 / 100
91 / 100
Moat domains
Demand, Supply, Legal
Legal, Financial, Demand
Last update
2025-12-31
2026-01-04

Moat coverage

Shared moat types

No overlap yet.

IDEXX Laboratories, Inc. strengths

Installed Base ConsumablesData Workflow LockinPhysical Network DensityRegulated Standards PipeCompliance Advantage

Transurban Group strengths

Concession LicenseBenchmark Pricing PowerDynamic congestion pricing

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%

Transurban Group segments

Full profile >

Sydney toll roads

Quasi-Monopoly

49.5%

Melbourne toll roads

Quasi-Monopoly

26.5%

Brisbane toll roads

Quasi-Monopoly

16%

North America managed lanes and concessions

Quasi-Monopoly

8.1%

Want the full wide moat stocks list?

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Looking for expansion-stage stocks?

Proven models entering the expansion stage with unit economics that work.

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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.