VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Aon plc vs AutoZone, Inc.

Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.

Aon plc

AON · New York Stock Exchange

Market cap (USD)$76.6B
SectorFinancials
CountryIE
Data as of2025-12-31
Moat score
70/ 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 Aon plc's moat claims, evidence, and risks.

View AON analysis

AutoZone, Inc.

AZO · New York Stock Exchange

Market cap (USD)$56.3B
SectorConsumer
CountryUS
Data as of2025-12-31
Moat score
59/ 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 AutoZone, Inc.'s moat claims, evidence, and risks.

View AZO analysis

Comparison highlights

  • Moat score gap: Aon plc leads (70 / 100 vs 59 / 100 for AutoZone, Inc.).
  • Segment focus: Aon plc has 2 segments (67% in Risk Capital); AutoZone, Inc. has 2 segments (88% in U.S. Auto Parts Retail & Commercial Distribution).
  • Primary market structure: Oligopoly vs Competitive. Pricing power: Moderate vs Moderate.
  • Moat breadth: Aon plc has 6 moat types across 3 domains; AutoZone, Inc. has 6 across 3.

Primary market context

Aon plc

Risk Capital

Market

Large-account commercial insurance & reinsurance brokerage and risk advisory

Geography

Global

Customer

Enterprises, insurers, reinsurers

Role

Intermediary/advisor

Revenue share

67%

AutoZone, Inc.

U.S. Auto Parts Retail & Commercial Distribution

Market

U.S. automotive aftermarket replacement parts & accessories retail and commercial distribution

Geography

United States

Customer

DIY consumers; professional repair shops (DIFM)

Role

Retailer and distributor

Revenue share

88%

Side-by-side metrics

Aon plc
AutoZone, Inc.
Ticker / Exchange
AON - New York Stock Exchange
AZO - New York Stock Exchange
Market cap (USD)
$76.6B
$56.3B
Sector
Financials
Consumer
HQ country
IE
US
Primary segment
Risk Capital
U.S. Auto Parts Retail & Commercial Distribution
Market structure
Oligopoly
Competitive
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
70 / 100
59 / 100
Moat domains
Demand, Supply, Legal
Supply, Demand, Financial
Last update
2025-12-31
2025-12-31

Moat coverage

Shared moat types

Service Field NetworkBrand Trust

Aon plc strengths

Data Workflow LockinSwitching Costs GeneralCompliance AdvantageScale Economies Unit Cost

AutoZone, Inc. strengths

Distribution ControlPhysical Network DensityOperational ExcellenceNegative Working Capital

Segment mix

Aon plc segments

Full profile >

Risk Capital

Oligopoly

67%

Human Capital

Oligopoly

33.2%

AutoZone, Inc. segments

Full profile >

U.S. Auto Parts Retail & Commercial Distribution

Competitive

88%

International Auto Parts Retail & Commercial Distribution (Mexico & Brazil)

Competitive

12%

Want the full wide moat stocks list?

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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.