VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, January 7, 2026

Stock Comparison

Chubb Limited vs Spirax Group plc

Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.

Chubb Limited

CB · New York Stock Exchange

Market cap (USD)$126.1B
Gross margin (TTM)28.5%
Operating margin (TTM)21.1%
Net margin (TTM)16.5%
SectorFinancials
IndustryInsurance - Property & Casualty
CountryCH
Data as of2026-01-04
Moat score
68/ 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 Chubb Limited's moat claims, evidence, and risks.

View CB analysis

Spirax Group plc

SPX · London Stock Exchange

Market cap (USD)$5B
Gross margin (TTM)19.6%
Operating margin (TTM)17.2%
Net margin (TTM)10.7%
SectorIndustrials
IndustryIndustrial - Machinery
CountryGB
Data as of2025-12-28
Moat score
71/ 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 Spirax Group plc's moat claims, evidence, and risks.

View SPX analysis

Comparison highlights

  • Moat score gap: Spirax Group plc leads (71 / 100 vs 68 / 100 for Chubb Limited).
  • Segment focus: Chubb Limited has 6 segments (40% in North America Commercial P&C Insurance); Spirax Group plc has 3 segments (52.1% in Steam Thermal Solutions).
  • Primary market structure: Competitive vs Oligopoly. Pricing power: Moderate vs Moderate.
  • Moat breadth: Chubb Limited has 6 moat types across 4 domains; Spirax Group plc has 6 across 2.

Primary market context

Chubb Limited

North America Commercial P&C Insurance

Market

Commercial property & casualty and corporate accident & health insurance

Geography

North America

Customer

Businesses and institutions (middle market to large corporates); specialty commercial

Role

Primary insurer / underwriter

Revenue share

40%

Spirax Group plc

Steam Thermal Solutions

Market

Industrial and commercial steam systems (condensate management, controls, thermal energy management products and solutions)

Geography

Global

Customer

Industrial process operators and commercial facility operators

Role

OEM / solutions provider

Revenue share

52.1%

Side-by-side metrics

Chubb Limited
Spirax Group plc
Ticker / Exchange
CB - New York Stock Exchange
SPX - London Stock Exchange
Market cap (USD)
$126.1B
$5B
Gross margin (TTM)
28.5%
19.6%
Operating margin (TTM)
21.1%
17.2%
Net margin (TTM)
16.5%
10.7%
Sector
Financials
Industrials
Industry
Insurance - Property & Casualty
Industrial - Machinery
HQ country
CH
GB
Primary segment
North America Commercial P&C Insurance
Steam Thermal Solutions
Market structure
Competitive
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
68 / 100
71 / 100
Moat domains
Supply, Demand, Legal, Financial
Supply, Demand
Last update
2026-01-04
2025-12-28

Moat coverage

Shared moat types

Brand TrustInstalled Base Consumables

Chubb Limited strengths

Distribution ControlOperational ExcellenceCompliance AdvantageCost Of Capital Advantage

Spirax Group plc strengths

Service Field NetworkCapex Knowhow ScaleDesign In QualificationSuite Bundling

Segment mix

Chubb Limited segments

Full profile >

North America Commercial P&C Insurance

Competitive

40%

North America Personal P&C Insurance

Oligopoly

12%

North America Agricultural Insurance

Oligopoly

5%

Overseas General Insurance

Competitive

27%

Global Reinsurance

Oligopoly

3%

Life Insurance

Competitive

13%

Spirax Group plc segments

Full profile >

Steam Thermal Solutions

Oligopoly

52.1%

Electric Thermal Solutions

Competitive

24.3%

Watson-Marlow Fluid Technology Solutions

Oligopoly

23.6%

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.