VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Friday, January 2, 2026
Stock Comparison
Sony Group Corporation vs Martin Marietta Materials, Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Sony Group Corporation
6758 · Tokyo 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 Sony Group Corporation's moat claims, evidence, and risks.
View 6758 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 75 / 100 for Sony Group Corporation).
- Segment focus: Sony Group Corporation has 5 segments (37.8% in Game & Network Services); Martin Marietta Materials, Inc. has 3 segments (52.4% in East Group).
- Primary market structure: Oligopoly vs Oligopoly. Pricing power: Moderate vs Strong.
- Moat breadth: Sony Group Corporation has 8 moat types across 4 domains; Martin Marietta Materials, Inc. has 4 across 2.
Primary market context
Sony Group Corporation
Game & Network Services
Console gaming platforms and associated network services
Global
Consumers (players) and game developers/publishers
Platform owner + publisher + hardware OEM
37.8%
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
Sony Group Corporation strengths
Martin Marietta Materials, Inc. strengths
Segment mix
Sony Group Corporation segments
Full profile >Game & Network Services
Oligopoly
Music
Oligopoly
Pictures
Oligopoly
Entertainment, Technology & Services
Competitive
Imaging & Sensing Solutions
Quasi-Monopoly
Martin Marietta Materials, Inc. segments
Full profile >East Group
Oligopoly
West Group
Oligopoly
Specialties (formerly Magnesia Specialties)
Oligopoly
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.