VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 2, 2026

Stock Comparison

Aon plc vs CAR Group Limited

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)$75.2B
Gross margin (TTM)43.7%
Operating margin (TTM)24.8%
Net margin (TTM)16%
SectorFinancials
IndustryInsurance - Brokers
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

CAR Group Limited

CAR · ASX

Market cap (USD)$7.8B
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorCommunication Services
Industry
CountryAU
Data as of
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 CAR Group Limited's moat claims, evidence, and risks.

View CAR analysis

Comparison highlights

  • Moat score gap: Aon plc leads (70 / 100 vs 69 / 100 for CAR Group Limited).
  • Segment focus: Aon plc has 2 segments (67% in Risk Capital); CAR Group Limited has 5 segments (41% in Australia).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: Aon plc has 6 moat types across 3 domains; CAR Group Limited 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%

CAR Group Limited

Australia

Market

Online vehicle marketplace, dealer advertising & automotive data/services

Geography

Australia

Customer

Dealers, OEM advertisers, private sellers & buyers

Role

Two-sided marketplace + advertising + data/SaaS tools

Revenue share

41%

Side-by-side metrics

Aon plc
CAR Group Limited
Ticker / Exchange
AON - New York Stock Exchange
CAR - ASX
Market cap (USD)
$75.2B
$7.8B
Gross margin (TTM)
43.7%
n/a
Operating margin (TTM)
24.8%
n/a
Net margin (TTM)
16%
n/a
Sector
Financials
Communication Services
Industry
Insurance - Brokers
n/a
HQ country
IE
AU
Primary segment
Risk Capital
Australia
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Strong
Moat score
70 / 100
69 / 100
Moat domains
Demand, Supply, Legal
Network, Demand, Supply
Last update
2025-12-31
2026-01-02

Moat coverage

Shared moat types

Switching Costs GeneralBrand Trust

Aon plc strengths

Data Workflow LockinService Field NetworkCompliance AdvantageScale Economies Unit Cost

CAR Group Limited strengths

Two Sided NetworkEcosystem ComplementsOperational Excellenceminority-investment-optionality

Segment mix

Aon plc segments

Full profile >

Risk Capital

Oligopoly

67%

Human Capital

Oligopoly

33.2%

CAR Group Limited segments

Full profile >

Australia

Oligopoly

41%

North America

Oligopoly

26%

Latin America

Oligopoly

17.3%

Asia

Oligopoly

11.5%

Investments

Competitive

4.2%

Want the full wide moat stocks list?

Browse the full ranking of wide moat stocks, updated with moat scores and segment context.

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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.