VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Tuesday, December 30, 2025

Stock Comparison

Sanofi vs Spirax Group plc

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

Sanofi

SAN · Euronext Paris

Market cap (USD)
SectorHealthcare
CountryFR
Data as of2025-12-30
Moat score
74/ 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 Sanofi's moat claims, evidence, and risks.

View SAN analysis

Spirax Group plc

SPX · London Stock Exchange

Market cap (USD)$6.7B
SectorIndustrials
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: Sanofi leads (74 / 100 vs 71 / 100 for Spirax Group plc).
  • Segment focus: Sanofi has 3 segments (79.8% in Pharma (Prescription Medicines)); Spirax Group plc has 3 segments (52.1% in Steam Thermal Solutions).
  • Moat breadth: Sanofi has 5 moat types across 3 domains; Spirax Group plc has 6 across 2.

Primary market context

Sanofi

Pharma (Prescription Medicines)

Market

Branded prescription pharmaceuticals (immunology, rare disease, neurology, oncology, general medicines)

Geography

Global

Customer

Patients via payers/providers and channel partners (wholesalers, pharmacies, hospitals)

Role

Research-based drug developer, manufacturer, and marketer

Revenue share

79.8%

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

Sanofi
Spirax Group plc
Ticker / Exchange
SAN - Euronext Paris
SPX - London Stock Exchange
Market cap (USD)
n/a
$6.7B
Sector
Healthcare
Industrials
HQ country
FR
GB
Primary segment
Pharma (Prescription Medicines)
Steam Thermal Solutions
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
74 / 100
71 / 100
Moat domains
Legal, Supply, Demand
Supply, Demand
Last update
2025-12-30
2025-12-28

Moat coverage

Shared moat types

Brand Trust

Sanofi strengths

Regulated Standards PipeIP Choke PointLearning Curve YieldDistribution Control

Spirax Group plc strengths

Service Field NetworkInstalled Base ConsumablesCapex Knowhow ScaleDesign In QualificationSuite Bundling

Segment mix

Sanofi segments

Full profile >

Pharma (Prescription Medicines)

Oligopoly

79.8%

Vaccines

Oligopoly

20.2%

Opella (Consumer Healthcare - Sanofi minority stake)

Competitive

n/a

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.