VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Pfizer Inc. vs UnitedHealth Group Incorporated

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)$142.1B
SectorHealthcare
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

UnitedHealth Group Incorporated

UNH · New York Stock Exchange

Market cap (USD)$123.8B
SectorHealthcare
CountryUS
Data as of2025-12-31
Moat score
64/ 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 UnitedHealth Group Incorporated's moat claims, evidence, and risks.

View UNH analysis

Comparison highlights

  • Moat score gap: UnitedHealth Group Incorporated leads (64 / 100 vs 58 / 100 for Pfizer Inc.).
  • Segment focus: Pfizer Inc. has 5 segments (47.4% in Primary Care); UnitedHealth Group Incorporated has 4 segments (74.9% in UnitedHealthcare).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Moderate vs Weak.
  • Moat breadth: Pfizer Inc. has 8 moat types across 3 domains; UnitedHealth Group Incorporated has 5 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%

UnitedHealth Group Incorporated

UnitedHealthcare

Market

U.S. health benefits / managed care (commercial, Medicare Advantage, Medicaid managed care)

Geography

United States (primarily)

Customer

Employers, individuals, and government-sponsored programs

Role

Health insurer / managed care organization

Revenue share

74.9%

Side-by-side metrics

Pfizer Inc.
UnitedHealth Group Incorporated
Ticker / Exchange
PFE - New York Stock Exchange
UNH - New York Stock Exchange
Market cap (USD)
$142.1B
$123.8B
Sector
Healthcare
Healthcare
HQ country
US
US
Primary segment
Primary Care
UnitedHealthcare
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Weak
Moat score
58 / 100
64 / 100
Moat domains
Legal, Demand, Supply
Supply, Demand
Last update
2025-12-29
2025-12-31

Moat coverage

Shared moat types

Operational Excellence

Pfizer Inc. strengths

IP Choke PointProcurement InertiaGovernment Contracting RelationshipsCapex Knowhow ScaleCompliance AdvantageLong Term ContractsEmbedded R&D partnership platform

UnitedHealth Group Incorporated strengths

Scale Economies Unit CostSuite BundlingData Workflow LockinTraining Org Change Costs

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%

UnitedHealth Group Incorporated segments

Full profile >

UnitedHealthcare

Oligopoly

74.9%

Optum Health

Competitive

9.9%

Optum Insight

Competitive

1.7%

Optum Rx

Oligopoly

13.5%

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.