VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 8, 2026

Stock Comparison

Auckland International Airport Limited vs Sea Limited

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)$14.3B
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

Sea Limited

SE · New York Stock Exchange

Market cap (USD)$82.8B
Gross margin (TTM)44.9%
Operating margin (TTM)8.2%
Net margin (TTM)6.8%
SectorConsumer
IndustrySpecialty Retail
CountrySG
Data as of2026-01-06
Moat score
69/ 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 Sea Limited's moat claims, evidence, and risks.

View SE analysis

Comparison highlights

  • Moat score gap: Auckland International Airport Limited leads (74 / 100 vs 69 / 100 for Sea Limited).
  • Segment focus: Auckland International Airport Limited has 3 segments; Sea Limited has 3 segments (73.8% in Shopee (E-commerce)).
  • Primary market structure: Monopoly vs Oligopoly. Pricing power: Moderate vs Moderate.
  • Moat breadth: Auckland International Airport Limited has 5 moat types across 3 domains; Sea Limited has 6 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

Sea Limited

Shopee (E-commerce)

Market

E-commerce marketplace and related value-added services

Geography

Southeast Asia, Taiwan, Brazil

Customer

Consumers and sellers

Role

Marketplace operator

Revenue share

73.8%

Side-by-side metrics

Auckland International Airport Limited
Sea Limited
Ticker / Exchange
AIA - NZX
SE - New York Stock Exchange
Market cap (USD)
$14.3B
$82.8B
Gross margin (TTM)
54.4%
44.9%
Operating margin (TTM)
55%
8.2%
Net margin (TTM)
23.3%
6.8%
Sector
Industrials
Consumer
Industry
Airlines, Airports & Air Services
Specialty Retail
HQ country
NZ
SG
Primary segment
Aeronautical (regulated airport services)
Shopee (E-commerce)
Market structure
Monopoly
Oligopoly
Market share
n/a
52% (reported)
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
74 / 100
69 / 100
Moat domains
Legal, Supply, Demand
Network, Supply, Legal
Last update
2025-12-28
2026-01-06

Moat coverage

Shared moat types

Distribution Control

Auckland International Airport Limited strengths

Permits Rights Of WayCapacity MoatLong Term ContractsGeographic Natural

Sea Limited strengths

Two Sided NetworkEcosystem ComplementsRegulated Standards PipeDirect Network EffectsContractual Exclusivity

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

Sea Limited segments

Full profile >

Shopee (E-commerce)

Oligopoly

73.8%

SeaMoney (Digital Financial Services)

Competitive

14.1%

Garena (Digital Entertainment)

Competitive

11.4%

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.