VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Saturday, January 10, 2026
Stock Comparison
Arthur J. Gallagher & Co. vs Interactive Brokers Group, Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Arthur J. Gallagher & Co.
AJG · 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 Arthur J. Gallagher & Co.'s moat claims, evidence, and risks.
View AJG analysisInteractive 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 analysisComparison highlights
- Moat score gap: Arthur J. Gallagher & Co. leads (69 / 100 vs 60 / 100 for Interactive Brokers Group, Inc.).
- Segment focus: Arthur J. Gallagher & Co. has 2 segments (86% in Brokerage); Interactive Brokers Group, Inc. has 1 segment (100% in Electronic brokerage).
- Primary market structure: Oligopoly vs Competitive. Pricing power: Moderate vs Weak.
- Moat breadth: Arthur J. Gallagher & Co. has 4 moat types across 2 domains; Interactive Brokers Group, Inc. has 4 across 4.
Primary market context
Arthur J. Gallagher & Co.
Brokerage
Insurance and reinsurance brokerage and consulting
Global
Commercial, industrial, public sector, nonprofit and other organizations; underwriting enterprises for reinsurance placements
Intermediary / broker / advisor
86%
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%
Side-by-side metrics
Moat coverage
Shared moat types
Arthur J. Gallagher & Co. strengths
Interactive Brokers Group, Inc. strengths
Segment mix
Arthur J. Gallagher & Co. segments
Full profile >Brokerage
Oligopoly
Risk Management
Competitive
Interactive Brokers Group, Inc. segments
Full profile >Electronic brokerage
Competitive
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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.