VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 2, 2026

Stock Comparison

Aon plc vs Mettler-Toledo 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)$76.6B
Gross margin (TTM)43.7%
Operating margin (TTM)24.8%
Net margin (TTM)16%
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

Mettler-Toledo International Inc.

MTD · New York Stock Exchange

Market cap (USD)
Gross margin (TTM)58.4%
Operating margin (TTM)28.6%
Net margin (TTM)21.2%
SectorHealthcare
CountryUS
Data as of2026-01-01
Moat score
73/ 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 Mettler-Toledo International Inc.'s moat claims, evidence, and risks.

View MTD analysis

Comparison highlights

  • Moat score gap: Mettler-Toledo International Inc. leads (73 / 100 vs 70 / 100 for Aon plc).
  • Segment focus: Aon plc has 2 segments (67% in Risk Capital); Mettler-Toledo International Inc. has 3 segments (56% in Laboratory Products and Services).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: Aon plc has 6 moat types across 3 domains; Mettler-Toledo International Inc. 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%

Mettler-Toledo International Inc.

Laboratory Products and Services

Market

Laboratory precision weighing (balances/scales) and adjacent lab measurement & sample-prep instruments, plus related software and services

Geography

Global

Customer

Life science, chemical, academic, and testing laboratories (end-users) via direct sales and distributors

Role

Instrument OEM / software provider / service provider

Revenue share

56%

Side-by-side metrics

Aon plc
Mettler-Toledo International Inc.
Ticker / Exchange
AON - New York Stock Exchange
MTD - New York Stock Exchange
Market cap (USD)
$76.6B
n/a
Gross margin (TTM)
43.7%
58.4%
Operating margin (TTM)
24.8%
28.6%
Net margin (TTM)
16%
21.2%
Sector
Financials
Healthcare
HQ country
IE
US
Primary segment
Risk Capital
Laboratory Products and Services
Market structure
Oligopoly
Oligopoly
Market share
n/a
25%-30% (estimated)
HHI estimate
n/a
2,440
Pricing power
Moderate
Strong
Moat score
70 / 100
73 / 100
Moat domains
Demand, Supply, Legal
Demand, Supply, Legal
Last update
2025-12-31
2026-01-01

Moat coverage

Shared moat types

Data Workflow LockinSwitching Costs GeneralService Field NetworkBrand TrustCompliance Advantage

Aon plc strengths

Scale Economies Unit Cost

Mettler-Toledo International Inc. strengths

No unique moat types yet.

Segment mix

Aon plc segments

Full profile >

Risk Capital

Oligopoly

67%

Human Capital

Oligopoly

33.2%

Mettler-Toledo International Inc. segments

Full profile >

Laboratory Products and Services

Oligopoly

56%

Industrial Products and Services

Competitive

39%

Food Retailing Products and Services

Competitive

5%

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.