VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Thursday, January 8, 2026
Stock Comparison
Judges Scientific plc vs Martin Marietta Materials, Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Judges Scientific plc
JDG · London Stock Exchange - AIM
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Full stock profile
Dive deeper into Judges Scientific plc's moat claims, evidence, and risks.
View JDG 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 63 / 100 for Judges Scientific plc).
- Segment focus: Judges Scientific plc has 2 segments (51.7% in Vacuum); 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: Judges Scientific plc has 3 moat types across 1 domains; Martin Marietta Materials, Inc. has 4 across 2.
Primary market context
Judges Scientific plc
Vacuum
Vacuum and surface-science related instrumentation (e.g., UHV/vacuum components and systems, thin-film/surface engineering adjacent tools)
Global
Research labs and high-tech manufacturing
Equipment manufacturer
51.7%
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.
Judges Scientific plc strengths
Martin Marietta Materials, Inc. strengths
Segment mix
Judges Scientific plc segments
Full profile >Materials Sciences
Competitive
Vacuum
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.