VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Saturday, January 10, 2026
Stock Comparison
Arthur J. Gallagher & Co. vs West Pharmaceutical Services, Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Arthur J. Gallagher & Co.
AJG · 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 Arthur J. Gallagher & Co.'s moat claims, evidence, and risks.
View AJG analysisWest Pharmaceutical Services, Inc.
WST · 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 West Pharmaceutical Services, Inc.'s moat claims, evidence, and risks.
View WST analysisComparison highlights
- Moat score gap: West Pharmaceutical Services, Inc. leads (85 / 100 vs 69 / 100 for Arthur J. Gallagher & Co.).
- Segment focus: Arthur J. Gallagher & Co. has 2 segments (86% in Brokerage); West Pharmaceutical Services, Inc. has 2 segments (80.7% in Proprietary Products).
- Primary market structure: Oligopoly vs Quasi-Monopoly. Pricing power: Moderate vs Moderate.
- Moat breadth: Arthur J. Gallagher & Co. has 4 moat types across 2 domains; West Pharmaceutical Services, Inc. has 5 across 3.
Primary market context
Arthur J. Gallagher & Co.
Brokerage
Insurance and reinsurance brokerage and consulting
Global
Commercial, industrial, public sector, nonprofit and other organizations; underwriting enterprises for reinsurance placements
Intermediary / broker / advisor
86%
West Pharmaceutical Services, Inc.
Proprietary Products
Injectable primary packaging components and containment/delivery systems (elastomeric stoppers, seals, plungers, syringe/cartridge components; related services)
Global
Biologic, generic, and pharmaceutical drug manufacturers
Primary packaging and delivery component supplier
80.7%
Side-by-side metrics
Moat coverage
Shared moat types
Arthur J. Gallagher & Co. strengths
West Pharmaceutical Services, Inc. strengths
Segment mix
Arthur J. Gallagher & Co. segments
Full profile >Brokerage
Oligopoly
Risk Management
Competitive
West Pharmaceutical Services, Inc. segments
Full profile >Proprietary Products
Quasi-Monopoly
Contract-Manufactured Products
Competitive
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View expansion-stage stocksCuration & 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.