VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Aon plc vs Medtronic plc

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

Medtronic plc

MDT · New York Stock Exchange

Market cap (USD)$123.8B
SectorHealthcare
CountryIE
Data as of2025-12-31
Moat score
63/ 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 Medtronic plc's moat claims, evidence, and risks.

View MDT analysis

Comparison highlights

  • Moat score gap: Aon plc leads (70 / 100 vs 63 / 100 for Medtronic plc).
  • Segment focus: Aon plc has 2 segments (67% in Risk Capital); Medtronic plc has 4 segments (37.2% in Cardiovascular Portfolio).
  • Moat breadth: Aon plc has 6 moat types across 3 domains; Medtronic plc has 9 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%

Medtronic plc

Cardiovascular Portfolio

Market

Cardiovascular medical devices (cardiac rhythm management, electrophysiology/ablation, structural heart, coronary & peripheral vascular)

Geography

Global

Customer

Hospitals, cath labs, electrophysiologists, cardiologists, cardiac & vascular surgeons

Role

Device OEM + procedure support + remote monitoring software/services

Revenue share

37.2%

Side-by-side metrics

Aon plc
Medtronic plc
Ticker / Exchange
AON - New York Stock Exchange
MDT - New York Stock Exchange
Market cap (USD)
$76.6B
$123.8B
Sector
Financials
Healthcare
HQ country
IE
IE
Primary segment
Risk Capital
Cardiovascular Portfolio
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
70 / 100
63 / 100
Moat domains
Demand, Supply, Legal
Legal, Demand, Network
Last update
2025-12-31
2025-12-31

Moat coverage

Shared moat types

Data Workflow LockinCompliance Advantage

Aon plc strengths

Switching Costs GeneralService Field NetworkBrand TrustScale Economies Unit Cost

Medtronic plc strengths

Regulated Standards PipeDesign In QualificationEcosystem ComplementsIP Choke PointProcurement InertiaSuite BundlingInstalled Base Consumables

Segment mix

Aon plc segments

Full profile >

Risk Capital

Oligopoly

67%

Human Capital

Oligopoly

33.2%

Medtronic plc segments

Full profile >

Cardiovascular Portfolio

Oligopoly

37.2%

Neuroscience Portfolio

Oligopoly

29.4%

Medical Surgical Portfolio

Competitive

25.1%

Diabetes Operating Unit

Oligopoly

8.2%

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.