VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Saturday, January 10, 2026

Stock Comparison

Arthur J. Gallagher & Co. vs Dassault Aviation

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

Market cap (USD)$67.9B
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorFinancials
IndustryInsurance - Brokers
CountryUS
Data as of2026-01-09
Moat score
69/ 100

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 analysis

Dassault Aviation

AM · Euronext Paris

Market cap (USD)$24.1B
Gross margin (TTM)40.4%
Operating margin (TTM)7.9%
Net margin (TTM)13.6%
SectorIndustrials
IndustryAerospace & Defense
CountryFR
Data as of2025-12-28
Moat score
79/ 100

Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.

Full stock profile

Dive deeper into Dassault Aviation's moat claims, evidence, and risks.

View AM analysis

Comparison highlights

  • Moat score gap: Dassault Aviation leads (79 / 100 vs 69 / 100 for Arthur J. Gallagher & Co.).
  • Segment focus: Arthur J. Gallagher & Co. has 2 segments (86% in Brokerage); Dassault Aviation has 2 segments (63.5% in Defence (Military Aircraft & Support)).
  • Moat breadth: Arthur J. Gallagher & Co. has 4 moat types across 2 domains; Dassault Aviation has 6 across 4.

Primary market context

Arthur J. Gallagher & Co.

Brokerage

Market

Insurance and reinsurance brokerage and consulting

Geography

Global

Customer

Commercial, industrial, public sector, nonprofit and other organizations; underwriting enterprises for reinsurance placements

Role

Intermediary / broker / advisor

Revenue share

86%

Dassault Aviation

Defence (Military Aircraft & Support)

Market

Multi-role fighter aircraft and military aircraft lifecycle support (Rafale and legacy platforms)

Geography

France + Export

Customer

National governments / defense ministries

Role

Prime contractor (OEM) + lifecycle support

Revenue share

63.5%

Side-by-side metrics

Arthur J. Gallagher & Co.
Dassault Aviation
Ticker / Exchange
AJG - New York Stock Exchange
AM - Euronext Paris
Market cap (USD)
$67.9B
$24.1B
Gross margin (TTM)
n/a
40.4%
Operating margin (TTM)
n/a
7.9%
Net margin (TTM)
n/a
13.6%
Sector
Financials
Industrials
Industry
Insurance - Brokers
Aerospace & Defense
HQ country
US
FR
Primary segment
Brokerage
Defence (Military Aircraft & Support)
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
69 / 100
79 / 100
Moat domains
Supply, Demand
Legal, Demand, Supply, Financial
Last update
2026-01-09
2025-12-28

Moat coverage

Shared moat types

Service Field Network

Arthur J. Gallagher & Co. strengths

Brand TrustData Workflow LockinOperational Excellence

Dassault Aviation strengths

Government Contracting RelationshipsLong Term ContractsFloat PrepaymentRegulated Standards PipeReputation Reviews

Segment mix

Arthur J. Gallagher & Co. segments

Full profile >

Brokerage

Oligopoly

86%

Risk Management

Competitive

14%

Dassault Aviation segments

Full profile >

Defence (Military Aircraft & Support)

Oligopoly

63.5%

Falcon (Business Jets & Support)

Oligopoly

36.5%

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 list

Looking for expansion-stage stocks?

Proven models entering the expansion stage with unit economics that work.

View expansion-stage stocks

Curation & 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.