VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Tuesday, December 30, 2025

Stock Comparison

Mastercard Incorporated vs Sanofi

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

Mastercard Incorporated

MA · New York Stock Exchange

Market cap (USD)$516.9B
SectorFinancials
CountryUS
Data as of2025-12-21
Moat score
77/ 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 Mastercard Incorporated's moat claims, evidence, and risks.

View MA analysis

Sanofi

SAN · Euronext Paris

Market cap (USD)
SectorHealthcare
CountryFR
Data as of2025-12-30
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 Sanofi's moat claims, evidence, and risks.

View SAN analysis

Comparison highlights

  • Moat score gap: Mastercard Incorporated leads (77 / 100 vs 74 / 100 for Sanofi).
  • Segment focus: Mastercard Incorporated has 2 segments (61.5% in Payment Network); Sanofi has 3 segments (79.8% in Pharma (Prescription Medicines)).
  • Moat breadth: Mastercard Incorporated has 6 moat types across 3 domains; Sanofi has 5 across 3.

Primary market context

Mastercard Incorporated

Payment Network

Market

Four-party card payment network (switching, acceptance, and network-related services)

Geography

Global

Customer

Issuers, acquirers, merchants, account holders

Role

Network operator (authorization, clearing, settlement) and rules/standards steward

Revenue share

61.5%

Sanofi

Pharma (Prescription Medicines)

Market

Branded prescription pharmaceuticals (immunology, rare disease, neurology, oncology, general medicines)

Geography

Global

Customer

Patients via payers/providers and channel partners (wholesalers, pharmacies, hospitals)

Role

Research-based drug developer, manufacturer, and marketer

Revenue share

79.8%

Side-by-side metrics

Mastercard Incorporated
Sanofi
Ticker / Exchange
MA - New York Stock Exchange
SAN - Euronext Paris
Market cap (USD)
$516.9B
n/a
Sector
Financials
Healthcare
HQ country
US
FR
Primary segment
Payment Network
Pharma (Prescription Medicines)
Market structure
Oligopoly
Oligopoly
Market share
29.7% (reported)
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
77 / 100
74 / 100
Moat domains
Network, Demand, Legal
Legal, Supply, Demand
Last update
2025-12-21
2025-12-30

Moat coverage

Shared moat types

Brand TrustRegulated Standards Pipe

Mastercard Incorporated strengths

Two Sided NetworkClearing SettlementData Network EffectsData Workflow Lockin

Sanofi strengths

IP Choke PointLearning Curve YieldDistribution Control

Segment mix

Mastercard Incorporated segments

Full profile >

Payment Network

Oligopoly

61.5%

Value-Added Services and Solutions

Competitive

38.5%

Sanofi segments

Full profile >

Pharma (Prescription Medicines)

Oligopoly

79.8%

Vaccines

Oligopoly

20.2%

Opella (Consumer Healthcare - Sanofi minority stake)

Competitive

n/a

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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.