VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Wednesday, December 31, 2025
Stock Comparison
Aon plc vs Canadian National Railway Company
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Aon plc
AON · New York Stock Exchange
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Canadian National Railway Company
CNR · Toronto Stock Exchange
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 analysisComparison highlights
- Moat score gap: Canadian National Railway Company leads (97 / 100 vs 70 / 100 for Aon plc).
- Segment focus: Aon plc has 2 segments (67% in Risk Capital); 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: Aon plc has 6 moat types across 3 domains; Canadian National Railway Company has 4 across 2.
Primary market context
Aon plc
Risk Capital
Large-account commercial insurance & reinsurance brokerage and risk advisory
Global
Enterprises, insurers, reinsurers
Intermediary/advisor
67%
Canadian National Railway Company
Rail freight transportation network
Canadian Class I freight rail transportation
Canada (with U.S. cross-border corridors)
Industrial shippers, intermodal customers, and auto supply chains
Line-haul freight railway (Class I)
96.2%
Side-by-side metrics
Moat coverage
Shared moat types
Aon plc strengths
Canadian National Railway Company strengths
Segment mix
Aon plc segments
Full profile >Risk Capital
Oligopoly
Human Capital
Oligopoly
Canadian National Railway Company segments
Full profile >Rail freight transportation network
Duopoly
Non-rail logistics and ancillary services
Competitive
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View the moat stocks listCuration & 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.