VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 2, 2026

Stock Comparison

Auckland International Airport Limited vs CSX 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)$14.1B
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

CSX Corporation

CSX · NASDAQ

Market cap (USD)$67.7B
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorIndustrials
IndustryRailroads
CountryUS
Data as of2026-01-02
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 CSX Corporation's moat claims, evidence, and risks.

View CSX analysis

Comparison highlights

  • Moat score: both at 74 / 100.
  • Segment focus: Auckland International Airport Limited has 3 segments; CSX Corporation has 5 segments (61.2% in Merchandise (Rail)).
  • Primary market structure: Monopoly vs Oligopoly. Pricing power: Moderate vs Moderate.
  • Moat breadth: Auckland International Airport Limited has 5 moat types across 3 domains; CSX Corporation has 6 across 2.

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

CSX Corporation

Merchandise (Rail)

Market

Eastern U.S. rail freight transportation (merchandise carload)

Geography

Eastern United States (CSX network; interchange to other railroads)

Customer

Industrial, agricultural, automotive and consumer goods shippers; logistics providers

Role

Common-carrier freight railroad (line-haul + switching/terminal)

Revenue share

61.2%

Side-by-side metrics

Auckland International Airport Limited
CSX Corporation
Ticker / Exchange
AIA - NZX
CSX - NASDAQ
Market cap (USD)
$14.1B
$67.7B
Gross margin (TTM)
54.4%
n/a
Operating margin (TTM)
55%
n/a
Net margin (TTM)
23.3%
n/a
Sector
Industrials
Industrials
Industry
Airlines, Airports & Air Services
Railroads
HQ country
NZ
US
Primary segment
Aeronautical (regulated airport services)
Merchandise (Rail)
Market structure
Monopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
74 / 100
74 / 100
Moat domains
Legal, Supply, Demand
Supply, Legal
Last update
2025-12-28
2026-01-02

Moat coverage

Shared moat types

Permits Rights Of WayGeographic Natural

Auckland International Airport Limited strengths

Capacity MoatDistribution ControlLong Term Contracts

CSX Corporation strengths

Physical Network DensityCapex Knowhow ScaleOperational ExcellenceScale Economies Unit Cost

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

CSX Corporation segments

Full profile >

Merchandise (Rail)

Oligopoly

61.2%

Intermodal (Rail)

Competitive

14.1%

Coal (Rail)

Oligopoly

15.5%

Trucking (Quality Carriers)

Competitive

5.8%

Other Revenue (Rail/Ancillary)

Competitive

3.4%

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.