VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Saturday, January 10, 2026
Stock Comparison
Arthur J. Gallagher & Co. vs Fastenal Company
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 analysisFastenal Company
FAST · 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 Fastenal Company's moat claims, evidence, and risks.
View FAST analysisComparison highlights
- Moat score gap: Arthur J. Gallagher & Co. leads (69 / 100 vs 57 / 100 for Fastenal Company).
- Segment focus: Arthur J. Gallagher & Co. has 2 segments (86% in Brokerage); Fastenal Company has 2 segments (55.7% in Core industrial & construction supplies distribution (branches, Onsite, eBusiness excl. FMI)).
- Primary market structure: Oligopoly vs Competitive. Pricing power: Moderate vs Weak.
- Moat breadth: Arthur J. Gallagher & Co. has 4 moat types across 2 domains; Fastenal Company has 4 across 2.
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%
Fastenal Company
Core industrial & construction supplies distribution (branches, Onsite, eBusiness excl. FMI)
Wholesale distribution of industrial and construction supplies (fasteners, safety, tools, and other MRO/OEM consumables)
Primarily North America (with growing international presence)
Manufacturing (OEM and MRO), non-residential construction, and other commercial customers
Distributor
55.7%
Side-by-side metrics
Moat coverage
Shared moat types
Arthur J. Gallagher & Co. strengths
Fastenal Company strengths
Segment mix
Arthur J. Gallagher & Co. segments
Full profile >Brokerage
Oligopoly
Risk Management
Competitive
Fastenal Company segments
Full profile >Fastenal Managed Inventory (FMI)
Competitive
Core industrial & construction supplies distribution (branches, Onsite, eBusiness excl. FMI)
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.