VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Union Pacific Corporation vs West Pharmaceutical Services, Inc.

Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.

Union Pacific Corporation

UNP · New York Stock Exchange

Market cap (USD)
SectorIndustrials
CountryUS
Data as of2025-12-30
Moat score
72/ 100

Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.

Full stock profile

Dive deeper into Union Pacific Corporation's moat claims, evidence, and risks.

View UNP analysis

West Pharmaceutical Services, Inc.

WST · New York Stock Exchange

Market cap (USD)
SectorHealthcare
CountryUS
Data as of2025-12-22
Moat score
85/ 100

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 analysis

Comparison highlights

  • Moat score gap: West Pharmaceutical Services, Inc. leads (85 / 100 vs 72 / 100 for Union Pacific Corporation).
  • Segment focus: Union Pacific Corporation has 4 segments (34.8% in Industrial); 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: Union Pacific Corporation has 5 moat types across 2 domains; West Pharmaceutical Services, Inc. has 5 across 3.

Primary market context

Union Pacific Corporation

Industrial

Market

Rail freight transportation for industrial commodities (chemicals and plastics, metals and minerals, forest products, energy and specialized markets)

Geography

U.S. western two-thirds with interchange to other railroads; cross-border corridors to Mexico and Canada

Customer

Chemical producers, refiners, plastics manufacturers, construction and material suppliers, metals and mining, industrial shippers

Role

Class I rail carrier / linehaul freight transport

Revenue share

34.8%

West Pharmaceutical Services, Inc.

Proprietary Products

Market

Injectable primary packaging components and containment/delivery systems (elastomeric stoppers, seals, plungers, syringe/cartridge components; related services)

Geography

Global

Customer

Biologic, generic, and pharmaceutical drug manufacturers

Role

Primary packaging and delivery component supplier

Revenue share

80.7%

Side-by-side metrics

Union Pacific Corporation
West Pharmaceutical Services, Inc.
Ticker / Exchange
UNP - New York Stock Exchange
WST - New York Stock Exchange
Market cap (USD)
n/a
n/a
Sector
Industrials
Healthcare
HQ country
US
US
Primary segment
Industrial
Proprietary Products
Market structure
Oligopoly
Quasi-Monopoly
Market share
n/a
70%-75% (reported)
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
72 / 100
85 / 100
Moat domains
Legal, Supply
Demand, Legal, Supply
Last update
2025-12-30
2025-12-22

Moat coverage

Shared moat types

Operational Excellence

Union Pacific Corporation strengths

Permits Rights Of WayPhysical Network DensityScale Economies Unit CostScope Economies

West Pharmaceutical Services, Inc. strengths

Design In QualificationCompliance AdvantageBrand TrustCapex Knowhow Scale

Segment mix

Union Pacific Corporation segments

Full profile >

Bulk

Oligopoly

29.7%

Industrial

Oligopoly

34.8%

Premium

Oligopoly

29.5%

Other subsidiary, accessorial and other revenues

Competitive

5.9%

West Pharmaceutical Services, Inc. segments

Full profile >

Proprietary Products

Quasi-Monopoly

80.7%

Contract-Manufactured Products

Competitive

19.3%

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Curation & 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.