VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 2, 2026

Stock Comparison

Halma plc vs Spirax Group plc

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

Halma plc

HLMA · London Stock Exchange

Market cap (USD)
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorTechnology
Industry
CountryGB
Data as of2026-01-02
Moat score
59/ 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 Halma plc's moat claims, evidence, and risks.

View HLMA 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 59 / 100 for Halma plc).
  • Segment focus: Halma plc has 3 segments (40% in Safety); 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: Halma plc has 4 moat types across 2 domains; Spirax Group plc has 6 across 2.

Primary market context

Halma plc

Safety

Market

Safety technologies (fire safety, public safety, worker safety, and protection of critical assets/infrastructure)

Geography

Global

Customer

Commercial/industrial facility owners and operators; infrastructure operators; installers and OEM channels

Role

Technology OEM / component + systems supplier

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

Halma plc
Spirax Group plc
Ticker / Exchange
HLMA - London Stock Exchange
SPX - London Stock Exchange
Market cap (USD)
n/a
$5B
Gross margin (TTM)
n/a
19.6%
Operating margin (TTM)
n/a
17.2%
Net margin (TTM)
n/a
10.7%
Sector
Technology
Industrials
Industry
n/a
Industrial - Machinery
HQ country
GB
GB
Primary segment
Safety
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
59 / 100
71 / 100
Moat domains
Legal, Demand
Supply, Demand
Last update
2026-01-02
2025-12-28

Moat coverage

Shared moat types

Design In Qualification

Halma plc strengths

Compliance AdvantageProcurement InertiaSwitching Costs General

Spirax Group plc strengths

Service Field NetworkInstalled Base ConsumablesBrand TrustCapex Knowhow ScaleSuite Bundling

Segment mix

Halma plc segments

Full profile >

Safety

Competitive

40%

Environmental & Analysis

Competitive

35%

Healthcare

Competitive

25%

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.