VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Saturday, January 10, 2026
Stock Comparison
Brown & Brown, Inc. vs Martin Marietta Materials, Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Brown & Brown, Inc.
BRO · 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 Brown & Brown, Inc.'s moat claims, evidence, and risks.
View BRO 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: Martin Marietta Materials, Inc. leads (78 / 100 vs 61 / 100 for Brown & Brown, Inc.).
- Segment focus: Brown & Brown, Inc. has 2 segments (59% in Retail); Martin Marietta Materials, Inc. has 3 segments (52.4% in East Group).
- Primary market structure: Competitive vs Oligopoly. Pricing power: Moderate vs Strong.
- Moat breadth: Brown & Brown, Inc. has 5 moat types across 3 domains; Martin Marietta Materials, Inc. has 4 across 2.
Primary market context
Brown & Brown, Inc.
Retail
Retail insurance brokerage and agency services (commercial P&C, employee benefits, personal lines) plus dealer F&I risk-mitigating products
Primarily United States; also selected international operations
Commercial (SMB to mid-market), public/quasi-public entities, professional and individual insured customers; auto/RV dealers for F&I
Insurance intermediary (agent/broker) and risk solutions advisor
59%
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.
Brown & Brown, Inc. strengths
Martin Marietta Materials, Inc. strengths
Segment mix
Brown & Brown, Inc. segments
Full profile >Retail
Competitive
Specialty Distribution
Oligopoly
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.