VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Auckland International Airport Limited vs TransDigm Group Incorporated

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

TransDigm Group Incorporated

TDG · New York Stock Exchange

Market cap (USD)$74.1B
SectorIndustrials
CountryUS
Data as of2025-12-31
Moat score
84/ 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 TransDigm Group Incorporated's moat claims, evidence, and risks.

View TDG analysis

Comparison highlights

  • Moat score gap: TransDigm Group Incorporated leads (84 / 100 vs 74 / 100 for Auckland International Airport Limited).
  • Segment focus: Auckland International Airport Limited has 3 segments; TransDigm Group Incorporated has 3 segments (51.6% in Power & Control).
  • Primary market structure: Monopoly vs Competitive. Pricing power: Moderate vs Strong.
  • Moat breadth: Auckland International Airport Limited has 5 moat types across 3 domains; TransDigm Group Incorporated has 5 across 3.

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

TransDigm Group Incorporated

Power & Control

Market

Highly engineered aerospace power & control components (OEM and aftermarket)

Geography

Global

Customer

Commercial airlines, aircraft OEMs, defense OEMs, governments, aerospace distributors

Role

Tier 2/3 component OEM, aftermarket spares, repair/overhaul

Revenue share

51.6%

Side-by-side metrics

Auckland International Airport Limited
TransDigm Group Incorporated
Ticker / Exchange
AIA - NZX
TDG - New York Stock Exchange
Market cap (USD)
n/a
$74.1B
Sector
Industrials
Industrials
HQ country
NZ
US
Primary segment
Aeronautical (regulated airport services)
Power & Control
Market structure
Monopoly
Competitive
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Strong
Moat score
74 / 100
84 / 100
Moat domains
Legal, Supply, Demand
Demand, Legal, Supply
Last update
2025-12-28
2025-12-31

Moat coverage

Shared moat types

No overlap yet.

Auckland International Airport Limited strengths

Permits Rights Of WayCapacity MoatDistribution ControlLong Term ContractsGeographic Natural

TransDigm Group Incorporated strengths

Design In QualificationInstalled Base ConsumablesRegulated Standards PipeOperational ExcellenceSmall legacy non-aviation portfolio

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

TransDigm Group Incorporated segments

Full profile >

Power & Control

Competitive

51.6%

Airframe

Competitive

46.6%

Non-aviation

Competitive

1.8%

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.