VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Aon plc vs Stryker Corporation

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

Stryker Corporation

SYK · New York Stock Exchange

Market cap (USD)$141.3B
SectorHealthcare
CountryUS
Data as of2025-12-30
Moat score
71/ 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 Stryker Corporation's moat claims, evidence, and risks.

View SYK analysis

Comparison highlights

  • Moat score gap: Stryker Corporation leads (71 / 100 vs 70 / 100 for Aon plc).
  • Segment focus: Aon plc has 2 segments (67% in Risk Capital); Stryker Corporation has 2 segments (59.8% in MedSurg and Neurotechnology).
  • Moat breadth: Aon plc has 6 moat types across 3 domains; Stryker Corporation 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%

Stryker Corporation

MedSurg and Neurotechnology

Market

Hospital medical devices: surgical equipment and navigation, endoscopy and visualization, patient handling and emergency care, neurosurgical and neurovascular devices

Geography

Global

Customer

Hospitals and ambulatory surgery centers; clinicians

Role

Medical device OEM + distributor/service provider

Revenue share

59.8%

Side-by-side metrics

Aon plc
Stryker Corporation
Ticker / Exchange
AON - New York Stock Exchange
SYK - New York Stock Exchange
Market cap (USD)
$76.6B
$141.3B
Sector
Financials
Healthcare
HQ country
IE
US
Primary segment
Risk Capital
MedSurg and Neurotechnology
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
70 / 100
71 / 100
Moat domains
Demand, Supply, Legal
Supply, Demand, Legal
Last update
2025-12-31
2025-12-30

Moat coverage

Shared moat types

Service Field NetworkBrand TrustCompliance Advantage

Aon plc strengths

Data Workflow LockinSwitching Costs GeneralScale Economies Unit Cost

Stryker Corporation strengths

IP Choke PointTraining Org Change Costs

Segment mix

Aon plc segments

Full profile >

Risk Capital

Oligopoly

67%

Human Capital

Oligopoly

33.2%

Stryker Corporation segments

Full profile >

MedSurg and Neurotechnology

Oligopoly

59.8%

Orthopaedics

Oligopoly

40.2%

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.