VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

IDEXX Laboratories, Inc. vs MarketAxess Holdings 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

MarketAxess Holdings Inc.

MKTX · NASDAQ Global Select Market

Market cap (USD)$6.7B
SectorFinancials
CountryUS
Data as of2025-12-23
Moat score
74/ 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 MarketAxess Holdings Inc.'s moat claims, evidence, and risks.

View MKTX analysis

Comparison highlights

  • Moat score gap: IDEXX Laboratories, Inc. leads (82 / 100 vs 74 / 100 for MarketAxess Holdings Inc.).
  • Segment focus: IDEXX Laboratories, Inc. has 4 segments (91.7% in Companion Animal Group); MarketAxess Holdings Inc. has 2 segments (87.1% in Trade Execution Solutions).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Strong vs Moderate.
  • Moat breadth: IDEXX Laboratories, Inc. has 5 moat types across 3 domains; MarketAxess Holdings Inc. has 6 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%

MarketAxess Holdings Inc.

Trade Execution Solutions

Market

Electronic fixed-income trade execution platforms (credit and rates)

Geography

Global

Customer

Institutional investors, broker-dealers, and alternative liquidity providers

Role

Electronic trading venue / marketplace operator

Revenue share

87.1%

Side-by-side metrics

IDEXX Laboratories, Inc.
MarketAxess Holdings Inc.
Ticker / Exchange
IDXX - NASDAQ
MKTX - NASDAQ Global Select Market
Market cap (USD)
$54.9B
$6.7B
Sector
Healthcare
Financials
HQ country
US
US
Primary segment
Companion Animal Group
Trade Execution Solutions
Market structure
Oligopoly
Oligopoly
Market share
n/a
19% (reported)
HHI estimate
n/a
n/a
Pricing power
Strong
Moderate
Moat score
82 / 100
74 / 100
Moat domains
Demand, Supply, Legal
Network, Demand, Legal
Last update
2025-12-31
2025-12-23

Moat coverage

Shared moat types

Data Workflow LockinCompliance Advantage

IDEXX Laboratories, Inc. strengths

Installed Base ConsumablesPhysical Network DensityRegulated Standards Pipe

MarketAxess Holdings Inc. strengths

Two Sided NetworkData Network EffectsSwitching Costs GeneralEcosystem Complements

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%

MarketAxess Holdings Inc. segments

Full profile >

Trade Execution Solutions

Oligopoly

87.1%

Services (Data, Post-Trade and Technology)

Competitive

12.9%

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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.