VOL. XCIV, NO. 247
* WIDE MOAT STOCKS COMPARISON *
NO ADVICE
Monday, December 29, 2025
Stock Comparison
Auckland International Airport Limited vs Costco Wholesale Corporation
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Auckland International Airport Limited
AIA · NZX
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 analysisCostco Wholesale Corporation
COST · Nasdaq Global Select Market
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Full stock profile
Dive deeper into Costco Wholesale Corporation's moat claims, evidence, and risks.
View COST analysisComparison highlights
- Moat score gap: Costco Wholesale Corporation leads (80 / 100 vs 74 / 100 for Auckland International Airport Limited).
- Segment focus: Auckland International Airport Limited has 3 segments; Costco Wholesale Corporation has 2 segments (98.1% in Warehouse club retail).
- Primary market structure: Monopoly vs Oligopoly. Pricing power: Moderate vs Weak.
- Moat breadth: Auckland International Airport Limited has 5 moat types across 3 domains; Costco Wholesale Corporation has 6 across 3.
Primary market context
Auckland International Airport Limited
Aeronautical (regulated airport services)
Aeronautical airport services at Auckland Airport (airfield landing/parking, passenger terminal and related charges)
New Zealand (Auckland catchment)
Airlines and aviation operators (direct customers); passengers indirectly
Airport infrastructure operator
Costco Wholesale Corporation
Warehouse club retail
Membership warehouse club retail (warehouse clubs, ancillary services, and e-commerce)
Global
Households and small businesses
Retailer (membership club)
98.1%
Side-by-side metrics
Moat coverage
Shared moat types
No overlap yet.
Auckland International Airport Limited strengths
Costco Wholesale Corporation strengths
Segment mix
Auckland International Airport Limited segments
Full profile >Aeronautical (regulated airport services)
Monopoly
Retail concessions and car parking
Quasi-Monopoly
Commercial property and precinct development
Competitive
Costco Wholesale Corporation segments
Full profile >Warehouse club retail
Oligopoly
Membership fees (subscription)
Oligopoly
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View the moat stocks listCuration & 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.