VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Aon plc vs Johnson & Johnson

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

Johnson & Johnson

JNJ · New York Stock Exchange

Market cap (USD)
SectorHealthcare
CountryUS
Data as of2025-12-21
Moat score
61/ 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 Johnson & Johnson's moat claims, evidence, and risks.

View JNJ analysis

Comparison highlights

  • Moat score gap: Aon plc leads (70 / 100 vs 61 / 100 for Johnson & Johnson).
  • Segment focus: Aon plc has 2 segments (67% in Risk Capital); Johnson & Johnson has 2 segments (64.1% in Innovative Medicine).
  • Primary market structure: Oligopoly vs Competitive. Pricing power: Moderate vs Moderate.
  • Moat breadth: Aon plc has 6 moat types across 3 domains; Johnson & Johnson has 5 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%

Johnson & Johnson

Innovative Medicine

Market

Branded prescription pharmaceuticals (biopharma)

Geography

Global

Customer

Wholesalers, hospitals, retailers, healthcare professionals, payers

Role

Drug discovery, development, manufacturing, commercialization

Revenue share

64.1%

Side-by-side metrics

Aon plc
Johnson & Johnson
Ticker / Exchange
AON - New York Stock Exchange
JNJ - New York Stock Exchange
Market cap (USD)
$76.6B
n/a
Sector
Financials
Healthcare
HQ country
IE
US
Primary segment
Risk Capital
Innovative Medicine
Market structure
Oligopoly
Competitive
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
70 / 100
61 / 100
Moat domains
Demand, Supply, Legal
Legal, Demand, Supply
Last update
2025-12-31
2025-12-21

Moat coverage

Shared moat types

Service Field NetworkBrand Trust

Aon plc strengths

Data Workflow LockinSwitching Costs GeneralCompliance AdvantageScale Economies Unit Cost

Johnson & Johnson strengths

IP Choke PointRegulated Standards PipeTraining Org Change Costs

Segment mix

Aon plc segments

Full profile >

Risk Capital

Oligopoly

67%

Human Capital

Oligopoly

33.2%

Johnson & Johnson segments

Full profile >

Innovative Medicine

Competitive

64.1%

MedTech

Oligopoly

35.9%

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.