VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

American Tower Corporation vs Canadian National Railway Company

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

American Tower Corporation

AMT · New York Stock Exchange

Market cap (USD)
SectorReal Estate
CountryUS
Data as of2025-12-31
Moat score
76/ 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 American Tower Corporation's moat claims, evidence, and risks.

View AMT analysis

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

Comparison highlights

  • Moat score gap: Canadian National Railway Company leads (97 / 100 vs 76 / 100 for American Tower Corporation).
  • Segment focus: American Tower Corporation has 3 segments; 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: American Tower Corporation has 6 moat types across 4 domains; Canadian National Railway Company has 4 across 2.

Primary market context

American Tower Corporation

U.S. & Canada Communications Sites

Market

Wireless communications site leasing (macro towers, rooftops and DAS)

Geography

United States and Canada

Customer

Wireless carriers and other tenants (broadcast, data, government/municipal)

Role

Independent owner/operator of communications real estate (towerco)

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

American Tower Corporation
Canadian National Railway Company
Ticker / Exchange
AMT - New York Stock Exchange
CNR - Toronto Stock Exchange
Market cap (USD)
n/a
$61.2B
Sector
Real Estate
Industrials
HQ country
US
CA
Primary segment
U.S. & Canada Communications Sites
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
76 / 100
97 / 100
Moat domains
Demand, Legal, Supply, Network
Legal, Supply
Last update
2025-12-31
2025-12-30

Moat coverage

Shared moat types

Permits Rights Of WayPhysical Network Density

American Tower Corporation strengths

Long Term ContractsSwitching Costs GeneralInteroperability HubCapacity Moat

Canadian National Railway Company strengths

Scale Economies Unit CostScope Economies

Segment mix

American Tower Corporation segments

Full profile >

U.S. & Canada Communications Sites

Oligopoly

n/a

International Communications Sites

Oligopoly

n/a

Data Centers

Competitive

n/a

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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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.