VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Friday, January 2, 2026
Stock Comparison
Martin Marietta Materials, Inc. vs United Rentals, Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Martin 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 analysisUnited Rentals, Inc.
URI · 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 United Rentals, Inc.'s moat claims, evidence, and risks.
View URI analysisComparison highlights
- Moat score gap: Martin Marietta Materials, Inc. leads (78 / 100 vs 63 / 100 for United Rentals, Inc.).
- Segment focus: Martin Marietta Materials, Inc. has 3 segments (52.4% in East Group); United Rentals, Inc. has 2 segments (70.7% in General Rentals).
- Primary market structure: Oligopoly vs Competitive. Pricing power: Strong vs Moderate.
- Moat breadth: Martin Marietta Materials, Inc. has 4 moat types across 2 domains; United Rentals, Inc. has 9 across 3.
Primary market context
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%
United Rentals, Inc.
General Rentals
Construction & industrial equipment rental (general line)
United States and Canada
Construction and industrial companies, manufacturers, utilities, municipalities, homeowners
Equipment rental provider / fleet operator
70.7%
Side-by-side metrics
Moat coverage
Shared moat types
Martin Marietta Materials, Inc. strengths
United Rentals, Inc. strengths
Segment mix
Martin Marietta Materials, Inc. segments
Full profile >East Group
Oligopoly
West Group
Oligopoly
Specialties (formerly Magnesia Specialties)
Oligopoly
United Rentals, Inc. segments
Full profile >General Rentals
Competitive
Specialty
Competitive
Want the full wide moat stocks list?
Browse the full ranking of wide moat stocks, updated with moat scores and segment context.
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.