VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Tuesday, December 30, 2025

Stock Comparison

MarketAxess Holdings Inc. vs Pfizer Inc.

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

MarketAxess Holdings Inc.

MKTX · NASDAQ Global Select Market

Market cap (USD)$6.7B
SectorFinancials
CountryUS
Data as of2025-12-23
Moat score
74/ 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 MarketAxess Holdings Inc.'s moat claims, evidence, and risks.

View MKTX analysis

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

Comparison highlights

  • Moat score gap: MarketAxess Holdings Inc. leads (74 / 100 vs 58 / 100 for Pfizer Inc.).
  • Segment focus: MarketAxess Holdings Inc. has 2 segments (87.1% in Trade Execution Solutions); Pfizer Inc. has 5 segments (47.4% in Primary Care).
  • Moat breadth: MarketAxess Holdings Inc. has 6 moat types across 3 domains; Pfizer Inc. has 8 across 3.

Primary market context

MarketAxess Holdings Inc.

Trade Execution Solutions

Market

Electronic fixed-income trade execution platforms (credit and rates)

Geography

Global

Customer

Institutional investors, broker-dealers, and alternative liquidity providers

Role

Electronic trading venue / marketplace operator

Revenue share

87.1%

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%

Side-by-side metrics

MarketAxess Holdings Inc.
Pfizer Inc.
Ticker / Exchange
MKTX - NASDAQ Global Select Market
PFE - New York Stock Exchange
Market cap (USD)
$6.7B
$142.1B
Sector
Financials
Healthcare
HQ country
US
US
Primary segment
Trade Execution Solutions
Primary Care
Market structure
Oligopoly
Oligopoly
Market share
19% (reported)
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
74 / 100
58 / 100
Moat domains
Network, Demand, Legal
Legal, Demand, Supply
Last update
2025-12-23
2025-12-29

Moat coverage

Shared moat types

Compliance Advantage

MarketAxess Holdings Inc. strengths

Two Sided NetworkData Workflow LockinData Network EffectsSwitching Costs GeneralEcosystem Complements

Pfizer Inc. strengths

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

Segment mix

MarketAxess Holdings Inc. segments

Full profile >

Trade Execution Solutions

Oligopoly

87.1%

Services (Data, Post-Trade and Technology)

Competitive

12.9%

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%

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.