VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 1, 2026

Stock Comparison

Aon plc vs HCA Healthcare, Inc.

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

HCA Healthcare, Inc.

HCA · New York Stock Exchange

Market cap (USD)$106.5B
SectorHealthcare
CountryUS
Data as of2026-01-01
Moat score
67/ 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 HCA Healthcare, Inc.'s moat claims, evidence, and risks.

View HCA analysis

Comparison highlights

  • Moat score gap: Aon plc leads (70 / 100 vs 67 / 100 for HCA Healthcare, Inc.).
  • Segment focus: Aon plc has 2 segments (67% in Risk Capital); HCA Healthcare, Inc. has 1 segment (100% in Hospitals and related healthcare entities).
  • Moat breadth: Aon plc has 6 moat types across 3 domains; HCA Healthcare, Inc. has 4 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%

HCA Healthcare, Inc.

Hospitals and related healthcare entities

Market

Acute care hospitals and outpatient healthcare services

Geography

United States (multi-state) and England (United Kingdom)

Customer

Patients and third-party payers

Role

Provider operator

Revenue share

100%

Side-by-side metrics

Aon plc
HCA Healthcare, Inc.
Ticker / Exchange
AON - New York Stock Exchange
HCA - New York Stock Exchange
Market cap (USD)
$76.6B
$106.5B
Sector
Financials
Healthcare
HQ country
IE
US
Primary segment
Risk Capital
Hospitals and related healthcare entities
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
70 / 100
67 / 100
Moat domains
Demand, Supply, Legal
Legal, Supply, Demand
Last update
2025-12-31
2026-01-01

Moat coverage

Shared moat types

Switching Costs General

Aon plc strengths

Data Workflow LockinService Field NetworkBrand TrustCompliance AdvantageScale Economies Unit Cost

HCA Healthcare, Inc. strengths

Permits Rights Of WayScope EconomiesPhysical Network Density

Segment mix

Aon plc segments

Full profile >

Risk Capital

Oligopoly

67%

Human Capital

Oligopoly

33.2%

HCA Healthcare, Inc. segments

Full profile >

Hospitals and related healthcare entities

Oligopoly

100%

Want the full wide moat stocks list?

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

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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.