VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Saturday, January 10, 2026

Stock Comparison

Air Liquide S.A. vs Auckland International Airport Limited

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

Air Liquide S.A.

AI · Euronext Paris

Market cap (USD)$91.6B
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorMaterials
IndustryChemicals - Specialty
CountryFR
Data as of2026-01-08
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 Air Liquide S.A.'s moat claims, evidence, and risks.

View AI analysis

Auckland International Airport Limited

AIA · NZX

Market cap (USD)$14.4B
Gross margin (TTM)54.4%
Operating margin (TTM)55%
Net margin (TTM)23.3%
SectorIndustrials
IndustryAirlines, Airports & Air Services
CountryNZ
Data as of2025-12-28
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 Auckland International Airport Limited's moat claims, evidence, and risks.

View AIA analysis

Comparison highlights

  • Moat score gap: Auckland International Airport Limited leads (74 / 100 vs 58 / 100 for Air Liquide S.A.).
  • Segment focus: Air Liquide S.A. has 6 segments (44% in Industrial Merchant); Auckland International Airport Limited has 3 segments.
  • Primary market structure: Competitive vs Monopoly. Pricing power: Moderate vs Moderate.
  • Moat breadth: Air Liquide S.A. has 12 moat types across 3 domains; Auckland International Airport Limited has 5 across 3.

Primary market context

Air Liquide S.A.

Industrial Merchant

Market

Merchant industrial and medical gases distribution (cylinders, bulk liquids) plus related equipment and services

Geography

Global (local/regional distribution markets)

Customer

SMEs and mid-market industrial customers, contractors, labs, and public sector buyers

Role

Distributor + producer (last-mile logistics, cylinder assets, bulk delivery)

Revenue share

44%

Auckland International Airport Limited

Aeronautical (regulated airport services)

Market

Aeronautical airport services at Auckland Airport (airfield landing/parking, passenger terminal and related charges)

Geography

New Zealand (Auckland catchment)

Customer

Airlines and aviation operators (direct customers); passengers indirectly

Role

Airport infrastructure operator

Side-by-side metrics

Air Liquide S.A.
Auckland International Airport Limited
Ticker / Exchange
AI - Euronext Paris
AIA - NZX
Market cap (USD)
$91.6B
$14.4B
Gross margin (TTM)
n/a
54.4%
Operating margin (TTM)
n/a
55%
Net margin (TTM)
n/a
23.3%
Sector
Materials
Industrials
Industry
Chemicals - Specialty
Airlines, Airports & Air Services
HQ country
FR
NZ
Primary segment
Industrial Merchant
Aeronautical (regulated airport services)
Market structure
Competitive
Monopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
58 / 100
74 / 100
Moat domains
Demand, Supply, Legal
Legal, Supply, Demand
Last update
2026-01-08
2025-12-28

Moat coverage

Shared moat types

Long Term ContractsDistribution Control

Air Liquide S.A. strengths

Physical Network DensityScale Economies Unit CostOperational ExcellenceService Field NetworkCompliance AdvantageDesign In QualificationSupply Chain ControlIP Choke PointCapex Knowhow ScaleScope Economies

Auckland International Airport Limited strengths

Permits Rights Of WayCapacity MoatGeographic Natural

Segment mix

Air Liquide S.A. segments

Full profile >

Large Industries

Oligopoly

26%

Industrial Merchant

Competitive

44%

Healthcare

Competitive

16%

Electronics

Oligopoly

9%

Engineering & Construction

Competitive

2%

Global Markets & Technologies

Competitive

3%

Auckland International Airport Limited segments

Full profile >

Aeronautical (regulated airport services)

Monopoly

n/a

Retail concessions and car parking

Quasi-Monopoly

n/a

Commercial property and precinct development

Competitive

n/a

Want the full wide moat stocks list?

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Looking for expansion-stage stocks?

Proven models entering the expansion stage with unit economics that work.

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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.