VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Waste Management, Inc. vs West Pharmaceutical Services, Inc.

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

Waste Management, Inc.

WM · New York Stock Exchange

Market cap (USD)
SectorIndustrials
CountryUS
Data as of2025-12-31
Moat score
79/ 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 Waste Management, Inc.'s moat claims, evidence, and risks.

View WM 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 79 / 100 for Waste Management, Inc.).
  • Segment focus: Waste Management, Inc. has 4 segments (82.2% in Collection and Disposal); 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: Waste Management, Inc. has 7 moat types across 3 domains; West Pharmaceutical Services, Inc. has 5 across 3.

Primary market context

Waste Management, Inc.

Collection and Disposal

Market

Municipal, commercial, and industrial solid waste collection, transfer, and landfill disposal

Geography

North America (primarily US and Canada)

Customer

Municipalities and end-customers (residential, commercial, industrial) via direct and contract channels

Role

Integrated hauler + transfer + landfill owner/operator

Revenue share

82.2%

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

Waste Management, Inc.
West Pharmaceutical Services, Inc.
Ticker / Exchange
WM - 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
Collection and Disposal
Proprietary Products
Market structure
Oligopoly
Quasi-Monopoly
Market share
n/a
70%-75% (reported)
HHI estimate
n/a
n/a
Pricing power
Strong
Moderate
Moat score
79 / 100
85 / 100
Moat domains
Legal, Supply, Demand
Demand, Legal, Supply
Last update
2025-12-31
2025-12-22

Moat coverage

Shared moat types

Operational Excellence

Waste Management, Inc. strengths

Permits Rights Of WayCapacity MoatPricing power via yield management and contracted rate actionsPreferential Input AccessRegulated Standards PipePhysical Network Density

West Pharmaceutical Services, Inc. strengths

Design In QualificationCompliance AdvantageBrand TrustCapex Knowhow Scale

Segment mix

Waste Management, Inc. segments

Full profile >

Collection and Disposal

Oligopoly

82.2%

Recycling Processing and Sales

Competitive

6%

WM Renewable Energy

Competitive

1.7%

WM Healthcare Solutions

Oligopoly

10%

West Pharmaceutical Services, Inc. segments

Full profile >

Proprietary Products

Quasi-Monopoly

80.7%

Contract-Manufactured Products

Competitive

19.3%

Want the full wide moat stocks list?

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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.