VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Wednesday, December 31, 2025
Stock Comparison
ASML Holding N.V. vs Marsh & McLennan Companies, Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
ASML Holding N.V.
ASML · Euronext Amsterdam
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Full stock profile
Dive deeper into ASML Holding N.V.'s moat claims, evidence, and risks.
View ASML 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: ASML Holding N.V. leads (76 / 100 vs 65 / 100 for Marsh & McLennan Companies, Inc.).
- Segment focus: ASML Holding N.V. has 3 segments (23% in Installed Base Management (service, upgrades, field options)); Marsh & McLennan Companies, Inc. has 2 segments (62.8% in Risk and Insurance Services).
- Primary market structure: Quasi-Monopoly vs Oligopoly. Pricing power: Strong vs Moderate.
- Moat breadth: ASML Holding N.V. has 6 moat types across 2 domains; Marsh & McLennan Companies, Inc. has 5 across 3.
Primary market context
ASML Holding N.V.
Installed Base Management (service, upgrades, field options)
Service, upgrades and field options for installed ASML lithography tools
Global
Owners/operators of ASML lithography systems
Aftermarket service provider
23%
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
ASML Holding N.V. strengths
Marsh & McLennan Companies, Inc. strengths
Segment mix
ASML Holding N.V. segments
Full profile >EUV lithography systems (incl. High-NA)
Monopoly
DUV lithography systems
Oligopoly
Installed Base Management (service, upgrades, field options)
Quasi-Monopoly
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.