VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Wednesday, December 31, 2025
Stock Comparison
Caterpillar Inc. vs Marsh & McLennan Companies, Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Caterpillar Inc.
CAT · 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 Caterpillar Inc.'s moat claims, evidence, and risks.
View CAT 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: Caterpillar Inc. leads (68 / 100 vs 65 / 100 for Marsh & McLennan Companies, Inc.).
- Segment focus: Caterpillar Inc. has 5 segments (40.7% in Energy & Transportation); Marsh & McLennan Companies, Inc. has 2 segments (62.8% in Risk and Insurance Services).
- Moat breadth: Caterpillar Inc. has 9 moat types across 4 domains; Marsh & McLennan Companies, Inc. has 5 across 3.
Primary market context
Caterpillar Inc.
Energy & Transportation
Off-highway engines, power generation, turbines, locomotives and related services
Global
Energy companies, industrial customers, OEMs, rail and marine operators
OEM + aftermarket parts/service
40.7%
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
Caterpillar Inc. strengths
Marsh & McLennan Companies, Inc. strengths
Segment mix
Caterpillar Inc. segments
Full profile >Construction Industries
Oligopoly
Resource Industries
Oligopoly
Energy & Transportation
Oligopoly
Financial Products
Competitive
All Other
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.