VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Canadian National Railway Company vs Sanofi

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

Canadian National Railway Company

CNR · Toronto Stock Exchange

Market cap (USD)$61.2B
SectorIndustrials
CountryCA
Data as of2025-12-30
Moat score
97/ 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 Canadian National Railway Company's moat claims, evidence, and risks.

View CNR 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: Canadian National Railway Company leads (97 / 100 vs 74 / 100 for Sanofi).
  • Segment focus: Canadian National Railway Company has 2 segments (96.2% in Rail freight transportation network); Sanofi has 3 segments (79.8% in Pharma (Prescription Medicines)).
  • Primary market structure: Duopoly vs Oligopoly. Pricing power: Moderate vs Moderate.
  • Moat breadth: Canadian National Railway Company has 4 moat types across 2 domains; Sanofi has 5 across 3.

Primary market context

Canadian National Railway Company

Rail freight transportation network

Market

Canadian Class I freight rail transportation

Geography

Canada (with U.S. cross-border corridors)

Customer

Industrial shippers, intermodal customers, and auto supply chains

Role

Line-haul freight railway (Class I)

Revenue share

96.2%

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

Canadian National Railway Company
Sanofi
Ticker / Exchange
CNR - Toronto Stock Exchange
SAN - Euronext Paris
Market cap (USD)
$61.2B
n/a
Sector
Industrials
Healthcare
HQ country
CA
FR
Primary segment
Rail freight transportation network
Pharma (Prescription Medicines)
Market structure
Duopoly
Oligopoly
Market share
50%-56% (estimated)
n/a
HHI estimate
4,031
n/a
Pricing power
Moderate
Moderate
Moat score
97 / 100
74 / 100
Moat domains
Legal, Supply
Legal, Supply, Demand
Last update
2025-12-30
2025-12-30

Moat coverage

Shared moat types

No overlap yet.

Canadian National Railway Company strengths

Permits Rights Of WayPhysical Network DensityScale Economies Unit CostScope Economies

Sanofi strengths

Regulated Standards PipeIP Choke PointLearning Curve YieldBrand TrustDistribution Control

Segment mix

Canadian National Railway Company segments

Full profile >

Rail freight transportation network

Duopoly

96.2%

Non-rail logistics and ancillary services

Competitive

3.8%

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.