VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Sunday, January 11, 2026
Stock Comparison
Auto Trader Group plc vs Martin Marietta Materials, Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Auto Trader Group plc
AUTO · London 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 Auto Trader Group plc's moat claims, evidence, and risks.
View AUTO 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: Auto Trader Group plc leads (96 / 100 vs 78 / 100 for Martin Marietta Materials, Inc.).
- Segment focus: Auto Trader Group plc has 2 segments (93.3% in Autotrader (UK automotive marketplace & data platform)); Martin Marietta Materials, Inc. has 3 segments (52.4% in East Group).
- Primary market structure: Quasi-Monopoly vs Oligopoly. Pricing power: Strong vs Strong.
- Moat breadth: Auto Trader Group plc has 4 moat types across 2 domains; Martin Marietta Materials, Inc. has 4 across 2.
Primary market context
Auto Trader Group plc
Autotrader (UK automotive marketplace & data platform)
UK digital automotive marketplace (new & used) with retailer advertising/data products
United Kingdom
Consumers, vehicle retailers, OEMs/advertising agencies
Two-sided marketplace + advertising/data & workflow tools
93.3%
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
No overlap yet.
Auto Trader Group plc strengths
Martin Marietta Materials, Inc. strengths
Segment mix
Auto Trader Group plc segments
Full profile >Autotrader (UK automotive marketplace & data platform)
Quasi-Monopoly
Autorama (vehicle leasing marketplace)
Competitive
Martin Marietta Materials, Inc. segments
Full profile >East Group
Oligopoly
West Group
Oligopoly
Specialties (formerly Magnesia Specialties)
Oligopoly
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Proven models entering the expansion stage with unit economics that work.
View expansion-stage stocksCuration & 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.