VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Tuesday, December 30, 2025

Stock Comparison

Pfizer Inc. vs RELX PLC

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

RELX PLC

REL · London Stock Exchange

Market cap (USD)$74.8B
SectorIndustrials
CountryGB
Data as of2025-12-30
Moat score
78/ 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 RELX PLC's moat claims, evidence, and risks.

View REL analysis

Comparison highlights

  • Moat score gap: RELX PLC leads (78 / 100 vs 58 / 100 for Pfizer Inc.).
  • Segment focus: Pfizer Inc. has 5 segments (47.4% in Primary Care); RELX PLC has 4 segments (34.4% in Risk).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: Pfizer Inc. has 8 moat types across 3 domains; RELX PLC has 8 across 3.

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%

RELX PLC

Risk

Market

Risk analytics & decisioning platforms (fraud/identity, financial crime compliance, insurance underwriting/claims, industry data)

Geography

Global (largest in North America)

Customer

Enterprises (banks, insurers, digital commerce), governments, and other regulated industries

Role

Data/analytics provider and workflow platform

Revenue share

34.4%

Side-by-side metrics

Pfizer Inc.
RELX PLC
Ticker / Exchange
PFE - New York Stock Exchange
REL - London Stock Exchange
Market cap (USD)
$142.1B
$74.8B
Sector
Healthcare
Industrials
HQ country
US
GB
Primary segment
Primary Care
Risk
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Strong
Moat score
58 / 100
78 / 100
Moat domains
Legal, Demand, Supply
Network, Demand, Legal
Last update
2025-12-29
2025-12-30

Moat coverage

Shared moat types

Compliance Advantage

Pfizer Inc. strengths

IP Choke PointProcurement InertiaGovernment Contracting RelationshipsCapex Knowhow ScaleLong Term ContractsOperational ExcellenceEmbedded R&D partnership platform

RELX PLC strengths

Data Network EffectsData Workflow LockinContent Rights CurrencyBrand TrustSuite BundlingTwo Sided NetworkReputation Reviews

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%

RELX PLC segments

Full profile >

Risk

Oligopoly

34.4%

Scientific, Technical & Medical

Oligopoly

32.3%

Legal

Oligopoly

20.1%

Exhibitions

Competitive

13.1%

Want the full wide moat stocks list?

Browse the full ranking of wide moat stocks, updated with moat scores and segment context.

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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.