VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Sunday, January 11, 2026

Stock Comparison

Auto Trader Group plc vs HEICO Corporation

Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.

Auto Trader Group plc

AUTO · London Stock Exchange

Market cap (USD)
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorCommunication Services
Industry
CountryGB
Data as of2026-01-10
Moat score
96/ 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 Auto Trader Group plc's moat claims, evidence, and risks.

View AUTO analysis

HEICO Corporation

HEI · NYSE

Market cap (USD)$49.2B
Gross margin (TTM)41.1%
Operating margin (TTM)22.9%
Net margin (TTM)15.4%
SectorIndustrials
IndustryAerospace & Defense
CountryUS
Data as of2025-12-30
Moat score
77/ 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 HEICO Corporation's moat claims, evidence, and risks.

View HEI analysis

Comparison highlights

  • Moat score gap: Auto Trader Group plc leads (96 / 100 vs 77 / 100 for HEICO Corporation).
  • Segment focus: Auto Trader Group plc has 2 segments (93.3% in Autotrader (UK automotive marketplace & data platform)); HEICO Corporation has 2 segments (69.5% in Flight Support Group (FSG)).
  • Primary market structure: Quasi-Monopoly vs Oligopoly. Pricing power: Strong vs Moderate.
  • Moat breadth: Auto Trader Group plc has 4 moat types across 2 domains; HEICO Corporation has 6 across 3.

Primary market context

Auto Trader Group plc

Autotrader (UK automotive marketplace & data platform)

Market

UK digital automotive marketplace (new & used) with retailer advertising/data products

Geography

United Kingdom

Customer

Consumers, vehicle retailers, OEMs/advertising agencies

Role

Two-sided marketplace + advertising/data & workflow tools

Revenue share

93.3%

HEICO Corporation

Flight Support Group (FSG)

Market

Aerospace aftermarket replacement parts and MRO services (jet engine and aircraft components), including FAA-approved PMA parts

Geography

Global

Customer

Commercial airlines, cargo carriers, MROs, OEMs, and government/military customers

Role

Aftermarket parts manufacturer + MRO/repair provider + distributor

Revenue share

69.5%

Side-by-side metrics

Auto Trader Group plc
HEICO Corporation
Ticker / Exchange
AUTO - London Stock Exchange
HEI - NYSE
Market cap (USD)
n/a
$49.2B
Gross margin (TTM)
n/a
41.1%
Operating margin (TTM)
n/a
22.9%
Net margin (TTM)
n/a
15.4%
Sector
Communication Services
Industrials
Industry
n/a
Aerospace & Defense
HQ country
GB
US
Primary segment
Autotrader (UK automotive marketplace & data platform)
Flight Support Group (FSG)
Market structure
Quasi-Monopoly
Oligopoly
Market share
75%-80% (reported)
n/a
HHI estimate
n/a
n/a
Pricing power
Strong
Moderate
Moat score
96 / 100
77 / 100
Moat domains
Network, Demand
Legal, Supply, Demand
Last update
2026-01-10
2025-12-30

Moat coverage

Shared moat types

No overlap yet.

Auto Trader Group plc strengths

Two Sided NetworkData Workflow LockinHabit DefaultEcosystem Complements

HEICO Corporation strengths

Regulated Standards PipeLearning Curve YieldBrand TrustDesign In QualificationIP Choke PointGovernment Contracting Relationships

Segment mix

Auto Trader Group plc segments

Full profile >

Autotrader (UK automotive marketplace & data platform)

Quasi-Monopoly

93.3%

Autorama (vehicle leasing marketplace)

Competitive

6.7%

HEICO Corporation segments

Full profile >

Flight Support Group (FSG)

Oligopoly

69.5%

Electronic Technologies Group (ETG)

Oligopoly

30.5%

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.