VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 8, 2026

Stock Comparison

Boston Scientific Corporation vs Canadian National Railway Company

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

Boston Scientific Corporation

BSX · New York Stock Exchange

Market cap (USD)$141.5B
Gross margin (TTM)65.1%
Operating margin (TTM)17.3%
Net margin (TTM)14.4%
SectorHealthcare
IndustryMedical - Devices
CountryUS
Data as of2026-01-04
Moat score
65/ 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 Boston Scientific Corporation's moat claims, evidence, and risks.

View BSX analysis

Canadian National Railway Company

CNR · Toronto Stock Exchange

Market cap (USD)$85.7B
Gross margin (TTM)48.8%
Operating margin (TTM)37.7%
Net margin (TTM)26.9%
SectorIndustrials
IndustryRailroads
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

Comparison highlights

  • Moat score gap: Canadian National Railway Company leads (97 / 100 vs 65 / 100 for Boston Scientific Corporation).
  • Segment focus: Boston Scientific Corporation has 5 segments (49.8% in Cardiology); Canadian National Railway Company has 2 segments (96.2% in Rail freight transportation network).
  • Primary market structure: Oligopoly vs Duopoly. Pricing power: Moderate vs Moderate.
  • Moat breadth: Boston Scientific Corporation has 6 moat types across 3 domains; Canadian National Railway Company has 4 across 2.

Primary market context

Boston Scientific Corporation

Cardiology

Market

Cardiology devices (interventional cardiology, structural heart, electrophysiology, cardiac rhythm management and remote monitoring)

Geography

Global

Customer

Hospitals/cath labs/EP labs and specialty clinics (cardiologists, electrophysiologists)

Role

Medical device OEM / implantables + procedure devices + service-enabled monitoring

Revenue share

49.8%

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%

Side-by-side metrics

Boston Scientific Corporation
Canadian National Railway Company
Ticker / Exchange
BSX - New York Stock Exchange
CNR - Toronto Stock Exchange
Market cap (USD)
$141.5B
$85.7B
Gross margin (TTM)
65.1%
48.8%
Operating margin (TTM)
17.3%
37.7%
Net margin (TTM)
14.4%
26.9%
Sector
Healthcare
Industrials
Industry
Medical - Devices
Railroads
HQ country
US
CA
Primary segment
Cardiology
Rail freight transportation network
Market structure
Oligopoly
Duopoly
Market share
n/a
50%-56% (estimated)
HHI estimate
n/a
4,031
Pricing power
Moderate
Moderate
Moat score
65 / 100
97 / 100
Moat domains
Demand, Legal, Supply
Legal, Supply
Last update
2026-01-04
2025-12-30

Moat coverage

Shared moat types

No overlap yet.

Boston Scientific Corporation strengths

Installed Base ConsumablesProcurement InertiaTraining Org Change CostsRegulated Standards PipeReputation ReviewsDistribution Control

Canadian National Railway Company strengths

Permits Rights Of WayPhysical Network DensityScale Economies Unit CostScope Economies

Segment mix

Boston Scientific Corporation segments

Full profile >

Endoscopy

Oligopoly

16%

Urology

Competitive

13.1%

Neuromodulation

Oligopoly

6.6%

Cardiology

Oligopoly

49.8%

Peripheral Interventions

Competitive

14.4%

Canadian National Railway Company segments

Full profile >

Rail freight transportation network

Duopoly

96.2%

Non-rail logistics and ancillary services

Competitive

3.8%

Want the full wide moat stocks list?

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Proven models entering the expansion stage with unit economics that work.

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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.