VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Friday, January 2, 2026
Stock Comparison
Martin Marietta Materials, Inc. vs West Pharmaceutical Services, Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Martin Marietta Materials, Inc.
MLM · NYSE
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Full stock profile
Dive deeper into Martin Marietta Materials, Inc.'s moat claims, evidence, and risks.
View MLM 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 78 / 100 for Martin Marietta Materials, Inc.).
- Segment focus: Martin Marietta Materials, Inc. has 3 segments (52.4% in East Group); West Pharmaceutical Services, Inc. has 2 segments (80.7% in Proprietary Products).
- Primary market structure: Oligopoly vs Quasi-Monopoly. Pricing power: Strong vs Moderate.
- Moat breadth: Martin Marietta Materials, Inc. has 4 moat types across 2 domains; West Pharmaceutical Services, Inc. has 5 across 3.
Primary market context
Martin Marietta Materials, Inc.
East Group
Construction aggregates and asphalt products (crushed stone, sand & gravel; asphalt) in local/regional markets
United States (East/Southeast and adjacent regions)
Infrastructure agencies, construction contractors, and downstream materials producers (asphalt/ready-mix)
Quarry/mining operator and building materials producer/distributor
52.4%
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
Martin Marietta Materials, Inc. strengths
West Pharmaceutical Services, Inc. strengths
Segment mix
Martin Marietta Materials, Inc. segments
Full profile >East Group
Oligopoly
West Group
Oligopoly
Specialties (formerly Magnesia Specialties)
Oligopoly
West Pharmaceutical Services, Inc. segments
Full profile >Proprietary Products
Quasi-Monopoly
Contract-Manufactured Products
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.