VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Friday, January 2, 2026
Stock Comparison
Canadian National Railway Company vs Martin Marietta Materials, Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
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 analysisMartin Marietta Materials, Inc.
MLM · NYSE
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Full stock profile
Dive deeper into Martin Marietta Materials, Inc.'s moat claims, evidence, and risks.
View MLM analysisComparison highlights
- Moat score gap: Canadian National Railway Company leads (97 / 100 vs 78 / 100 for Martin Marietta Materials, Inc.).
- Segment focus: Canadian National Railway Company has 2 segments (96.2% in Rail freight transportation network); Martin Marietta Materials, Inc. has 3 segments (52.4% in East Group).
- Primary market structure: Duopoly vs Oligopoly. Pricing power: Moderate vs Strong.
- Moat breadth: Canadian National Railway Company has 4 moat types across 2 domains; Martin Marietta Materials, Inc. has 4 across 2.
Primary market context
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%
Martin Marietta Materials, Inc.
East Group
Construction aggregates and asphalt products (crushed stone, sand & gravel; asphalt) in local/regional markets
United States (East/Southeast and adjacent regions)
Infrastructure agencies, construction contractors, and downstream materials producers (asphalt/ready-mix)
Quarry/mining operator and building materials producer/distributor
52.4%
Side-by-side metrics
Moat coverage
Shared moat types
Canadian National Railway Company strengths
Martin Marietta Materials, Inc. strengths
Segment mix
Canadian National Railway Company segments
Full profile >Rail freight transportation network
Duopoly
Non-rail logistics and ancillary services
Competitive
Martin Marietta Materials, Inc. segments
Full profile >East Group
Oligopoly
West Group
Oligopoly
Specialties (formerly Magnesia Specialties)
Oligopoly
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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.