VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Saturday, January 3, 2026

Stock Comparison

Aon plc vs Honeywell International 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)$75.2B
Gross margin (TTM)43.7%
Operating margin (TTM)24.8%
Net margin (TTM)16%
SectorFinancials
IndustryInsurance - Brokers
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

Honeywell International Inc.

HON · The Nasdaq Stock Market LLC

Market cap (USD)
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorIndustrials
Industry
CountryUS
Data as of2026-01-02
Moat score
58/ 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 Honeywell International Inc.'s moat claims, evidence, and risks.

View HON analysis

Comparison highlights

  • Moat score gap: Aon plc leads (70 / 100 vs 58 / 100 for Honeywell International Inc.).
  • Segment focus: Aon plc has 2 segments (67% in Risk Capital); Honeywell International Inc. has 4 segments (40.2% in Aerospace Technologies).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: Aon plc has 6 moat types across 3 domains; Honeywell International Inc. has 9 across 2.

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%

Honeywell International Inc.

Aerospace Technologies

Market

Aerospace systems, avionics, propulsion & aftermarket MRO services

Geography

Global

Customer

Aircraft OEMs, airlines/operators, defense & space contractors

Role

Tier-1 supplier + aftermarket service provider

Revenue share

40.2%

Side-by-side metrics

Aon plc
Honeywell International Inc.
Ticker / Exchange
AON - New York Stock Exchange
HON - The Nasdaq Stock Market LLC
Market cap (USD)
$75.2B
n/a
Gross margin (TTM)
43.7%
n/a
Operating margin (TTM)
24.8%
n/a
Net margin (TTM)
16%
n/a
Sector
Financials
Industrials
Industry
Insurance - Brokers
n/a
HQ country
IE
US
Primary segment
Risk Capital
Aerospace Technologies
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Strong
Moat score
70 / 100
58 / 100
Moat domains
Demand, Supply, Legal
Demand, Legal
Last update
2025-12-31
2026-01-02

Moat coverage

Shared moat types

Data Workflow LockinSwitching Costs GeneralBrand Trust

Aon plc strengths

Service Field NetworkCompliance AdvantageScale Economies Unit Cost

Honeywell International Inc. strengths

Installed Base ConsumablesRegulated Standards PipeSuite BundlingIP Choke PointDesign In QualificationLong Term Contracts

Segment mix

Aon plc segments

Full profile >

Risk Capital

Oligopoly

67%

Human Capital

Oligopoly

33.2%

Honeywell International Inc. segments

Full profile >

Aerospace Technologies

Oligopoly

40.2%

Industrial Automation

Competitive

26.1%

Building Automation

Oligopoly

17%

Energy and Sustainability Solutions

Oligopoly

16.7%

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.