VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Unicharm Corporation vs Aon plc

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

Unicharm Corporation

8113 · Tokyo Stock Exchange

Market cap (USD)
SectorConsumer
CountryJP
Data as of2025-12-29
Moat score
60/ 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 Unicharm Corporation's moat claims, evidence, and risks.

View 8113 analysis

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

Comparison highlights

  • Moat score gap: Aon plc leads (70 / 100 vs 60 / 100 for Unicharm Corporation).
  • Segment focus: Unicharm Corporation has 5 segments; Aon plc has 2 segments (67% in Risk Capital).
  • Moat breadth: Unicharm Corporation has 7 moat types across 3 domains; Aon plc has 6 across 3.

Primary market context

Unicharm Corporation

Baby and Child Care Products

Market

Disposable baby diapers and baby wipes

Geography

Japan, Asia, Middle East, and selected other markets

Customer

Consumers (parents/caregivers)

Role

Branded manufacturer

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%

Side-by-side metrics

Unicharm Corporation
Aon plc
Ticker / Exchange
8113 - Tokyo Stock Exchange
AON - New York Stock Exchange
Market cap (USD)
n/a
$76.6B
Sector
Consumer
Financials
HQ country
JP
IE
Primary segment
Baby and Child Care Products
Risk Capital
Market structure
Oligopoly
Oligopoly
Market share
35%-84% (reported)
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
60 / 100
70 / 100
Moat domains
Demand, Supply, Legal
Demand, Supply, Legal
Last update
2025-12-29
2025-12-31

Moat coverage

Shared moat types

Brand Trust

Unicharm Corporation strengths

Distribution ControlCapex Knowhow ScaleHabit DefaultTraining Org Change CostsIP Choke PointOperational Excellence

Aon plc strengths

Data Workflow LockinSwitching Costs GeneralService Field NetworkCompliance AdvantageScale Economies Unit Cost

Segment mix

Unicharm Corporation segments

Full profile >

Baby and Child Care Products

Oligopoly

n/a

Feminine Care Products

Oligopoly

n/a

Wellness Care Products (Adult Incontinence)

Oligopoly

n/a

Pet Care Products

Competitive

n/a

Industrial Materials and Other Businesses

Competitive

n/a

Aon plc segments

Full profile >

Risk Capital

Oligopoly

67%

Human Capital

Oligopoly

33.2%

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.