VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Wednesday, December 31, 2025
Stock Comparison
IDEXX Laboratories, Inc. vs Marsh & McLennan Companies, Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
IDEXX Laboratories, Inc.
IDXX · NASDAQ
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 analysisMarsh & McLennan Companies, Inc.
MMC · New York Stock Exchange
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Full stock profile
Dive deeper into Marsh & McLennan Companies, Inc.'s moat claims, evidence, and risks.
View MMC analysisComparison highlights
- Moat score gap: IDEXX Laboratories, Inc. leads (82 / 100 vs 65 / 100 for Marsh & McLennan Companies, Inc.).
- Segment focus: IDEXX Laboratories, Inc. has 4 segments (91.7% in Companion Animal Group); Marsh & McLennan Companies, Inc. has 2 segments (62.8% in Risk and Insurance Services).
- Primary market structure: Oligopoly vs Oligopoly. Pricing power: Strong vs Moderate.
- Moat breadth: IDEXX Laboratories, Inc. has 5 moat types across 3 domains; Marsh & McLennan Companies, Inc. has 5 across 3.
Primary market context
IDEXX Laboratories, Inc.
Companion Animal Group
Veterinary diagnostics and practice management software for companion animals
Global
Veterinary practices, corporate veterinary groups, and reference laboratories
Diagnostics platform owner (in-clinic instruments + consumables) and reference lab/service provider; practice management software provider
91.7%
Marsh & McLennan Companies, Inc.
Risk and Insurance Services
Insurance brokerage, risk advisory, and reinsurance brokerage/services
Global
Enterprises, public entities, associations, and individuals (via broker/agent channels)
Intermediary + advisor (insurance/reinsurance market intermediary)
62.8%
Side-by-side metrics
Moat coverage
Shared moat types
IDEXX Laboratories, Inc. strengths
Marsh & McLennan Companies, Inc. strengths
Segment mix
IDEXX Laboratories, Inc. segments
Full profile >Companion Animal Group
Oligopoly
Water Quality Products
Oligopoly
Livestock, Poultry and Dairy
Competitive
Other (OPTI Medical and out-licensing)
Competitive
Marsh & McLennan Companies, Inc. segments
Full profile >Risk and Insurance Services
Oligopoly
Consulting
Competitive
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View the moat stocks listCuration & 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.