VOL. XCIV, NO. 247

* WIDE MOAT STOCKS COMPARISON *

NO ADVICE

Monday, December 29, 2025

Stock Comparison

Auckland International Airport Limited vs IDEX Corporation

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

IDEX Corporation

IEX · New York Stock Exchange

Market cap (USD)$13.4B
SectorIndustrials
CountryUS
Data as of2025-12-23
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 IDEX Corporation's moat claims, evidence, and risks.

View IEX analysis

Comparison highlights

  • Moat score gap: Auckland International Airport Limited leads (74 / 100 vs 58 / 100 for IDEX Corporation).
  • Segment focus: Auckland International Airport Limited has 3 segments; IDEX Corporation has 3 segments (39.6% in Health & Science Technologies (HST)).
  • Primary market structure: Monopoly vs Competitive. Pricing power: Moderate vs Moderate.
  • Moat breadth: Auckland International Airport Limited has 5 moat types across 3 domains; IDEX Corporation has 7 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

IDEX Corporation

Health & Science Technologies (HST)

Market

Precision fluidics, optics/photonics, microfluidics, sealing solutions, pneumatic components, and process technologies for life science/diagnostics, semiconductor, aerospace/defense, and industrial markets

Geography

Global

Customer

Life science & diagnostic instrument OEMs, semiconductor/industrial OEMs, specialty industrial customers

Role

Component/subsystem supplier and specialty equipment provider

Revenue share

39.6%

Side-by-side metrics

Auckland International Airport Limited
IDEX Corporation
Ticker / Exchange
AIA - NZX
IEX - New York Stock Exchange
Market cap (USD)
n/a
$13.4B
Sector
Industrials
Industrials
HQ country
NZ
US
Primary segment
Aeronautical (regulated airport services)
Health & Science Technologies (HST)
Market structure
Monopoly
Competitive
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
74 / 100
58 / 100
Moat domains
Legal, Supply, Demand
Demand, Supply, Legal
Last update
2025-12-28
2025-12-23

Moat coverage

Shared moat types

No overlap yet.

Auckland International Airport Limited strengths

Permits Rights Of WayCapacity MoatDistribution ControlLong Term ContractsGeographic Natural

IDEX Corporation strengths

Design In QualificationData Workflow LockinInstalled Base ConsumablesLearning Curve YieldIP Choke PointBrand TrustProcurement Inertia

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

IDEX Corporation segments

Full profile >

Fluid & Metering Technologies (FMT)

Competitive

37.7%

Health & Science Technologies (HST)

Competitive

39.6%

Fire & Safety/Diversified Products (FSDP)

Competitive

22.7%

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.