VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Saturday, January 10, 2026
Stock Comparison
Vertex Pharmaceuticals Incorporated vs West Pharmaceutical Services, Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Vertex Pharmaceuticals Incorporated
VRTX · 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 Vertex Pharmaceuticals Incorporated's moat claims, evidence, and risks.
View VRTX 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: Vertex Pharmaceuticals Incorporated leads (99 / 100 vs 85 / 100 for West Pharmaceutical Services, Inc.).
- Segment focus: Vertex Pharmaceuticals Incorporated has 3 segments (99.9% in Cystic Fibrosis CFTR Modulators); West Pharmaceutical Services, Inc. has 2 segments (80.7% in Proprietary Products).
- Primary market structure: Quasi-Monopoly vs Quasi-Monopoly. Pricing power: Strong vs Moderate.
- Moat breadth: Vertex Pharmaceuticals Incorporated has 7 moat types across 4 domains; West Pharmaceutical Services, Inc. has 5 across 3.
Primary market context
Vertex Pharmaceuticals Incorporated
Cystic Fibrosis CFTR Modulators
CFTR modulator therapies for cystic fibrosis
U.S., Europe, Australia, Canada
Patients (via specialty pharmacies/payers); CF care centers
Drug developer/manufacturer
99.9%
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
No overlap yet.
Vertex Pharmaceuticals Incorporated strengths
West Pharmaceutical Services, Inc. strengths
Segment mix
Vertex Pharmaceuticals Incorporated segments
Full profile >Cystic Fibrosis CFTR Modulators
Quasi-Monopoly
Hemoglobinopathies Gene Therapy (CASGEVY)
Oligopoly
Acute Pain (JOURNAVX)
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.