VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Tuesday, December 30, 2025

Stock Comparison

Amazon.com, Inc. vs Sanofi

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

Amazon.com, Inc.

AMZN · NASDAQ

Market cap (USD)$2.5T
SectorConsumer
CountryUS
Data as of2025-12-29
Moat score
87/ 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 Amazon.com, Inc.'s moat claims, evidence, and risks.

View AMZN 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: Amazon.com, Inc. leads (87 / 100 vs 74 / 100 for Sanofi).
  • Segment focus: Amazon.com, Inc. has 4 segments (73.5% in Amazon Stores (Retail, Marketplace, Prime Subscriptions)); Sanofi has 3 segments (79.8% in Pharma (Prescription Medicines)).
  • Moat breadth: Amazon.com, Inc. has 10 moat types across 4 domains; Sanofi has 5 across 3.

Primary market context

Amazon.com, Inc.

Amazon Stores (Retail, Marketplace, Prime Subscriptions)

Market

US retail ecommerce marketplace and online retail (integrated fulfillment + membership shipping)

Geography

United States

Customer

Consumers and third-party merchants

Role

Marketplace operator, retailer, and fulfillment provider

Revenue share

73.5%

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

Amazon.com, Inc.
Sanofi
Ticker / Exchange
AMZN - NASDAQ
SAN - Euronext Paris
Market cap (USD)
$2.5T
n/a
Sector
Consumer
Healthcare
HQ country
US
FR
Primary segment
Amazon Stores (Retail, Marketplace, Prime Subscriptions)
Pharma (Prescription Medicines)
Market structure
Oligopoly
Oligopoly
Market share
39%-42% (estimated)
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
87 / 100
74 / 100
Moat domains
Supply, Demand, Network, Financial
Legal, Supply, Demand
Last update
2025-12-29
2025-12-30

Moat coverage

Shared moat types

Distribution Control

Amazon.com, Inc. strengths

Capex Knowhow ScaleScope EconomiesLong Term ContractsTwo Sided NetworkPhysical Network DensitySuite BundlingHabit DefaultNegative Working CapitalData Network Effects

Sanofi strengths

Regulated Standards PipeIP Choke PointLearning Curve YieldBrand Trust

Segment mix

Amazon.com, Inc. segments

Full profile >

Amazon Web Services (AWS)

Oligopoly

16.9%

Amazon Stores (Retail, Marketplace, Prime Subscriptions)

Oligopoly

73.5%

Advertising Services (Amazon Ads / Retail Media)

Oligopoly

8.8%

Other (healthcare, content licensing/distribution, shipping services, co-branded credit card agreements, etc.)

Competitive

0.9%

Sanofi segments

Full profile >

Pharma (Prescription Medicines)

Oligopoly

79.8%

Vaccines

Oligopoly

20.2%

Opella (Consumer Healthcare - Sanofi minority stake)

Competitive

n/a

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.