VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Friday, January 2, 2026
Stock Comparison
Aon plc vs Norfolk Southern Corporation
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.
Norfolk Southern Corporation
NSC · New York 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 Norfolk Southern Corporation's moat claims, evidence, and risks.
View NSC analysisComparison highlights
- Moat score: both at 70 / 100.
- Segment focus: Aon plc has 2 segments (67% in Risk Capital); Norfolk Southern Corporation has 3 segments (62% in Merchandise).
- Moat breadth: Aon plc has 6 moat types across 3 domains; Norfolk Southern Corporation has 4 across 3.
Primary market context
Aon plc
Risk Capital
Large-account commercial insurance & reinsurance brokerage and risk advisory
Global
Enterprises, insurers, reinsurers
Intermediary/advisor
67%
Norfolk Southern Corporation
Merchandise
Eastern U.S. freight rail transportation for industrial & consumer goods
United States (Southeast/East/Midwest; NS network + interchanges)
Manufacturers, producers, and distributors
Rail carrier
62%
Side-by-side metrics
Moat coverage
Shared moat types
Aon plc strengths
Norfolk Southern Corporation strengths
Segment mix
Aon plc segments
Full profile >Risk Capital
Oligopoly
Human Capital
Oligopoly
Norfolk Southern Corporation segments
Full profile >Merchandise
Oligopoly
Intermodal
Oligopoly
Coal
Oligopoly
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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 Pricing, features, and availability may be incomplete or out of date.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.