VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 2, 2026

Stock Comparison

Pfizer Inc. vs Pro Medicus Limited

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

Pfizer Inc.

PFE · New York Stock Exchange

Market cap (USD)$143.4B
Gross margin (TTM)71.2%
Operating margin (TTM)27.8%
Net margin (TTM)15.6%
SectorHealthcare
IndustryDrug Manufacturers - General
CountryUS
Data as of2025-12-29
Moat score
58/ 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 Pfizer Inc.'s moat claims, evidence, and risks.

View PFE analysis

Pro Medicus Limited

PME · ASX

Market cap (USD)$15.5B
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorHealthcare
Industry
CountryAU
Data as of
Moat score
80/ 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 Pro Medicus Limited's moat claims, evidence, and risks.

View PME analysis

Comparison highlights

  • Moat score gap: Pro Medicus Limited leads (80 / 100 vs 58 / 100 for Pfizer Inc.).
  • Segment focus: Pfizer Inc. has 5 segments (47.4% in Primary Care); Pro Medicus Limited has 2 segments (92.5% in Visage 7 Enterprise Imaging Platform (PACS / CloudPACS)).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: Pfizer Inc. has 8 moat types across 3 domains; Pro Medicus Limited has 6 across 2.

Primary market context

Pfizer Inc.

Primary Care

Market

Branded primary care medicines and vaccines (incl. cardiovascular, migraine, pneumococcal/RSV/COVID-19)

Geography

Global

Customer

Healthcare providers, payers/PBMs, pharmacies/wholesalers, and government procurement

Role

Innovator biopharma (R&D + manufacturing + commercialization)

Revenue share

47.4%

Pro Medicus Limited

Visage 7 Enterprise Imaging Platform (PACS / CloudPACS)

Market

Enterprise imaging / PACS and related modules for hospitals and integrated delivery networks (IDNs)

Geography

Primarily North America; also Europe and Australia

Customer

Hospitals, imaging centers, integrated delivery networks (IDNs)

Role

Healthcare IT software vendor / platform provider

Revenue share

92.5%

Side-by-side metrics

Pfizer Inc.
Pro Medicus Limited
Ticker / Exchange
PFE - New York Stock Exchange
PME - ASX
Market cap (USD)
$143.4B
$15.5B
Gross margin (TTM)
71.2%
n/a
Operating margin (TTM)
27.8%
n/a
Net margin (TTM)
15.6%
n/a
Sector
Healthcare
Healthcare
Industry
Drug Manufacturers - General
n/a
HQ country
US
AU
Primary segment
Primary Care
Visage 7 Enterprise Imaging Platform (PACS / CloudPACS)
Market structure
Oligopoly
Oligopoly
Market share
n/a
55% (implied)
HHI estimate
n/a
n/a
Pricing power
Moderate
Strong
Moat score
58 / 100
80 / 100
Moat domains
Legal, Demand, Supply
Demand, Supply
Last update
2025-12-29
2026-01-02

Moat coverage

Shared moat types

Long Term ContractsOperational Excellence

Pfizer Inc. strengths

IP Choke PointProcurement InertiaGovernment Contracting RelationshipsCapex Knowhow ScaleCompliance AdvantageEmbedded R&D partnership platform

Pro Medicus Limited strengths

Data Workflow LockinKeystone ComponentSuite BundlingSwitching Costs General

Segment mix

Pfizer Inc. segments

Full profile >

Primary Care

Oligopoly

47.4%

Specialty Care

Oligopoly

26.2%

Oncology

Competitive

24.5%

Pfizer CentreOne

Competitive

1.8%

Pfizer Ignite

Competitive

0.1%

Pro Medicus Limited segments

Full profile >

Visage 7 Enterprise Imaging Platform (PACS / CloudPACS)

Oligopoly

92.5%

Visage RIS (Radiology Information System) and Promedicus.net

Oligopoly

7.5%

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.