VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Stock Comparison

DexCom, Inc. vs IDEXX Laboratories, Inc.

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

DexCom, Inc.

DXCM · Nasdaq Global Select Market

Market cap (USD)$23.6B
Gross margin (TTM)60.1%
Operating margin (TTM)19.6%
Net margin (TTM)17.9%
SectorHealthcare
IndustryMedical - Devices
CountryUS
Data as of2026-04-24
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 DexCom, Inc.'s moat claims, evidence, and risks.

View DXCM analysis

IDEXX Laboratories, Inc.

IDXX · NASDAQ

Market cap (USD)$44.7B
Gross margin (TTM)61.8%
Operating margin (TTM)31.6%
Net margin (TTM)24.6%
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

Comparison highlights

  • Moat score: both at 82 / 100.
  • Segment focus: DexCom, Inc. has 1 segment (100% in Continuous glucose monitoring systems); IDEXX Laboratories, Inc. has 4 segments (91.7% in Companion Animal Group).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: DexCom, Inc. has 5 moat types across 3 domains; IDEXX Laboratories, Inc. has 5 across 3.

Primary market context

DexCom, Inc.

Continuous glucose monitoring systems

Market

Global continuous glucose monitoring systems and glucose biosensing devices

Geography

Global, with FY2025 revenue 71.5% United States and 28.5% international

Customer

People with diabetes, metabolic-health users, caregivers, clinicians, payors, distributors and pharmacy channels

Role

CGM device manufacturer, disposable sensor supplier, software/data platform and distribution partner

Revenue share

100%

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

DexCom, Inc.
IDEXX Laboratories, Inc.
Ticker / Exchange
DXCM - Nasdaq Global Select Market
IDXX - NASDAQ
Market cap (USD)
$23.6B
$44.7B
Gross margin (TTM)
60.1%
61.8%
Operating margin (TTM)
19.6%
31.6%
Net margin (TTM)
17.9%
24.6%
Sector
Healthcare
Healthcare
Industry
Medical - Devices
Medical - Diagnostics & Research
HQ country
US
US
Primary segment
Continuous glucose monitoring systems
Companion Animal Group
Market structure
Oligopoly
Oligopoly
Market share
35.1% (estimated)
n/a
HHI estimate
4,452
n/a
Pricing power
Moderate
Strong
Moat score
82 / 100
82 / 100
Moat domains
Demand, Network, Legal
Demand, Supply, Legal
Last update
2026-04-24
2025-12-31

Moat coverage

Shared moat types

Installed Base ConsumablesRegulated Standards PipeData Workflow Lockin

DexCom, Inc. strengths

Ecosystem ComplementsBrand Trust

IDEXX Laboratories, Inc. strengths

Physical Network DensityCompliance Advantage

Segment mix

DexCom, Inc. segments

Full profile >

Continuous glucose monitoring systems

Oligopoly

100%

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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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.