VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Wednesday, January 7, 2026
Stock Comparison
Interactive Brokers Group, Inc. vs Martin Marietta Materials, Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Interactive Brokers Group, Inc.
IBKR · NASDAQ
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Full stock profile
Dive deeper into Interactive Brokers Group, Inc.'s moat claims, evidence, and risks.
View IBKR 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 60 / 100 for Interactive Brokers Group, Inc.).
- Segment focus: Interactive Brokers Group, Inc. has 1 segment (100% in Electronic brokerage); Martin Marietta Materials, Inc. has 3 segments (52.4% in East Group).
- Primary market structure: Competitive vs Oligopoly. Pricing power: Weak vs Strong.
- Moat breadth: Interactive Brokers Group, Inc. has 4 moat types across 4 domains; Martin Marietta Materials, Inc. has 4 across 2.
Primary market context
Interactive Brokers Group, Inc.
Electronic brokerage
Multi-asset electronic brokerage, clearing, custody, and financing (self-directed and institutional)
Global
Individual investors and institutional clients (e.g., hedge funds, advisors, proprietary trading firms, introducing brokers)
Broker-dealer / clearing broker / platform operator
100%
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.
Interactive Brokers Group, Inc. strengths
Martin Marietta Materials, Inc. strengths
Segment mix
Interactive Brokers Group, Inc. segments
Full profile >Electronic brokerage
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.