VOL. XCIV, NO. 247

* WIDE MOAT STOCKS COMPARISON *

NO ADVICE

Monday, December 29, 2025

Stock Comparison

Auckland International Airport Limited vs Melrose Industries PLC

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

Auckland International Airport Limited

AIA · NZX

Market cap (USD)
SectorIndustrials
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

Melrose Industries PLC

MRO · London Stock Exchange

Market cap (USD)$10B
SectorIndustrials
CountryGB
Data as of2025-12-28
Moat score
77/ 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 Melrose Industries PLC's moat claims, evidence, and risks.

View MRO analysis

Comparison highlights

  • Moat score gap: Melrose Industries PLC leads (77 / 100 vs 74 / 100 for Auckland International Airport Limited).
  • Segment focus: Auckland International Airport Limited has 3 segments; Melrose Industries PLC has 2 segments (57.9% in Structures).
  • Primary market structure: Monopoly vs Oligopoly. Pricing power: Moderate vs Moderate.
  • Moat breadth: Auckland International Airport Limited has 5 moat types across 3 domains; Melrose Industries PLC has 5 across 2.

Primary market context

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

Melrose Industries PLC

Structures

Market

Aerostructures and aircraft electrical wiring systems (EWIS)

Geography

Global

Customer

Airframe OEMs; defence primes

Role

Tier-1 aerospace supplier

Revenue share

57.9%

Side-by-side metrics

Auckland International Airport Limited
Melrose Industries PLC
Ticker / Exchange
AIA - NZX
MRO - London Stock Exchange
Market cap (USD)
n/a
$10B
Sector
Industrials
Industrials
HQ country
NZ
GB
Primary segment
Aeronautical (regulated airport services)
Structures
Market structure
Monopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
74 / 100
77 / 100
Moat domains
Legal, Supply, Demand
Demand, Supply
Last update
2025-12-28
2025-12-28

Moat coverage

Shared moat types

Capacity MoatLong Term Contracts

Auckland International Airport Limited strengths

Permits Rights Of WayDistribution ControlGeographic Natural

Melrose Industries PLC strengths

Design In QualificationCapex Knowhow ScaleService Field Network

Segment mix

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

Melrose Industries PLC segments

Full profile >

Engines

Oligopoly

42.1%

Structures

Oligopoly

57.9%

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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.