VOL. XCIV, NO. 247

* WIDE MOAT STOCKS COMPARISON *

NO ADVICE

Monday, December 29, 2025

Stock Comparison

Auckland International Airport Limited vs Zimmer Biomet Holdings, Inc.

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

Zimmer Biomet Holdings, Inc.

ZBH · New York Stock Exchange

Market cap (USD)
SectorHealthcare
CountryUS
Data as of2025-12-23
Moat score
72/ 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 Zimmer Biomet Holdings, Inc.'s moat claims, evidence, and risks.

View ZBH analysis

Comparison highlights

  • Moat score gap: Auckland International Airport Limited leads (74 / 100 vs 72 / 100 for Zimmer Biomet Holdings, Inc.).
  • Segment focus: Auckland International Airport Limited has 3 segments; Zimmer Biomet Holdings, Inc. has 4 segments (41.3% in Knees).
  • Primary market structure: Monopoly vs Oligopoly. Pricing power: Moderate vs Moderate.
  • Moat breadth: Auckland International Airport Limited has 5 moat types across 3 domains; Zimmer Biomet Holdings, Inc. has 7 across 5.

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

Zimmer Biomet Holdings, Inc.

Knees

Market

Knee reconstruction implants (primary, partial, revision) plus associated instruments and orthopedic robotics/navigation

Geography

Global

Customer

Hospitals and ambulatory surgery centers

Role

OEM manufacturer

Revenue share

41.3%

Side-by-side metrics

Auckland International Airport Limited
Zimmer Biomet Holdings, Inc.
Ticker / Exchange
AIA - NZX
ZBH - New York Stock Exchange
Market cap (USD)
n/a
n/a
Sector
Industrials
Healthcare
HQ country
NZ
US
Primary segment
Aeronautical (regulated airport services)
Knees
Market structure
Monopoly
Oligopoly
Market share
n/a
30.1% (reported)
HHI estimate
n/a
2,265
Pricing power
Moderate
Moderate
Moat score
74 / 100
72 / 100
Moat domains
Legal, Supply, Demand
Demand, Supply, Legal, Financial, Network
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

Zimmer Biomet Holdings, Inc. strengths

Design In QualificationService Field NetworkRegulated Standards PipeBenchmark Pricing PowerScope EconomiesEcosystem ComplementsData Workflow Lockin

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

Zimmer Biomet Holdings, Inc. segments

Full profile >

Knees

Oligopoly

41.3%

Hips

Oligopoly

26%

S.E.T. (Sports Medicine, Extremities, Trauma, CMFT)

Competitive

24.3%

Technology & Data, Bone Cement and Surgical

Oligopoly

8.3%

Want the full wide moat stocks list?

Browse the full ranking of wide moat stocks, updated with moat scores and segment context.

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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.