VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

General Dynamics Corporation vs IDEXX Laboratories, Inc.

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

General Dynamics Corporation

GD · New York Stock Exchange

Market cap (USD)$92.4B
SectorIndustrials
CountryUS
Data as of2025-12-29
Moat score
80/ 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 General Dynamics Corporation's moat claims, evidence, and risks.

View GD analysis

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

Comparison highlights

  • Moat score gap: IDEXX Laboratories, Inc. leads (82 / 100 vs 80 / 100 for General Dynamics Corporation).
  • Segment focus: General Dynamics Corporation has 4 segments (30.1% in Marine Systems (Nuclear subs + surface shipbuilding)); IDEXX Laboratories, Inc. has 4 segments (91.7% in Companion Animal Group).
  • Primary market structure: Duopoly vs Oligopoly. Pricing power: Weak vs Strong.
  • Moat breadth: General Dynamics Corporation has 11 moat types across 3 domains; IDEXX Laboratories, Inc. has 5 across 3.

Primary market context

General Dynamics Corporation

Marine Systems (Nuclear subs + surface shipbuilding)

Market

U.S. Navy nuclear-powered submarine construction and major surface combatant shipbuilding/lifecycle services

Geography

United States

Customer

Government (primarily U.S. Navy)

Role

Prime contractor / shipbuilder / lifecycle services

Revenue share

30.1%

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%

Side-by-side metrics

General Dynamics Corporation
IDEXX Laboratories, Inc.
Ticker / Exchange
GD - New York Stock Exchange
IDXX - NASDAQ
Market cap (USD)
$92.4B
$54.9B
Sector
Industrials
Healthcare
HQ country
US
US
Primary segment
Marine Systems (Nuclear subs + surface shipbuilding)
Companion Animal Group
Market structure
Duopoly
Oligopoly
Market share
45%-55% (estimated)
n/a
HHI estimate
5,000
n/a
Pricing power
Weak
Strong
Moat score
80 / 100
82 / 100
Moat domains
Demand, Supply, Legal
Demand, Supply, Legal
Last update
2025-12-29
2025-12-31

Moat coverage

Shared moat types

Regulated Standards PipeCompliance Advantage

General Dynamics Corporation strengths

Brand TrustService Field NetworkCapex Knowhow ScaleLong Term ContractsGovernment Contracting RelationshipsDesign In QualificationProcurement InertiaCapacity MoatSuite Bundling

IDEXX Laboratories, Inc. strengths

Installed Base ConsumablesData Workflow LockinPhysical Network Density

Segment mix

General Dynamics Corporation segments

Full profile >

Aerospace (Gulfstream + Jet Aviation)

Oligopoly

23.6%

Marine Systems (Nuclear subs + surface shipbuilding)

Duopoly

30.1%

Combat Systems (Land vehicles + munitions)

Oligopoly

18.9%

Technologies (C5ISR + Federal IT)

Competitive

27.5%

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%

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.