VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Aon plc vs Edwards Lifesciences 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

Edwards Lifesciences Corporation

EW · New York Stock Exchange

Market cap (USD)$50B
SectorHealthcare
CountryUS
Data as of2025-12-31
Moat score
82/ 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 Edwards Lifesciences Corporation's moat claims, evidence, and risks.

View EW analysis

Comparison highlights

  • Moat score gap: Edwards Lifesciences Corporation leads (82 / 100 vs 70 / 100 for Aon plc).
  • Segment focus: Aon plc has 2 segments (67% in Risk Capital); Edwards Lifesciences Corporation has 3 segments (75.5% in Transcatheter Aortic Valve Replacement (TAVR)).
  • Moat breadth: Aon plc has 6 moat types across 3 domains; Edwards Lifesciences Corporation 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%

Edwards Lifesciences Corporation

Transcatheter Aortic Valve Replacement (TAVR)

Market

Transcatheter aortic valve replacement (TAVR) devices

Geography

Global

Customer

Hospitals and structural heart centers

Role

Medical device manufacturer

Revenue share

75.5%

Side-by-side metrics

Aon plc
Edwards Lifesciences Corporation
Ticker / Exchange
AON - New York Stock Exchange
EW - New York Stock Exchange
Market cap (USD)
$76.6B
$50B
Sector
Financials
Healthcare
HQ country
IE
US
Primary segment
Risk Capital
Transcatheter Aortic Valve Replacement (TAVR)
Market structure
Oligopoly
Oligopoly
Market share
n/a
60%-73% (estimated)
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
70 / 100
82 / 100
Moat domains
Demand, Supply, Legal
Demand, Legal, Supply
Last update
2025-12-31
2025-12-31

Moat coverage

Shared moat types

Brand TrustCompliance Advantage

Aon plc strengths

Data Workflow LockinSwitching Costs GeneralService Field NetworkScale Economies Unit Cost

Edwards Lifesciences Corporation strengths

Training Org Change CostsRegulated Standards PipeIP Choke PointSupply Chain Control

Segment mix

Aon plc segments

Full profile >

Risk Capital

Oligopoly

67%

Human Capital

Oligopoly

33.2%

Edwards Lifesciences Corporation segments

Full profile >

Transcatheter Aortic Valve Replacement (TAVR)

Oligopoly

75.5%

Transcatheter Mitral and Tricuspid Therapies (TMTT)

Competitive

6.5%

Surgical Structural Heart

Oligopoly

18%

Want the full wide moat stocks list?

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

View the moat stocks list

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.