VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Sunday, January 11, 2026

Stock Comparison

Auto Trader Group plc vs Pro Medicus Limited

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

Pro Medicus Limited

PME · ASX

Market cap (USD)$22B
Gross margin (TTM)77.8%
Operating margin (TTM)72.1%
Net margin (TTM)52.9%
SectorHealthcare
IndustryMedical - Healthcare Information Services
CountryAU
Data as of
Moat score
80/ 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 Pro Medicus Limited's moat claims, evidence, and risks.

View PME analysis

Comparison highlights

  • Moat score gap: Auto Trader Group plc leads (96 / 100 vs 80 / 100 for Pro Medicus Limited).
  • Segment focus: Auto Trader Group plc has 2 segments (93.3% in Autotrader (UK automotive marketplace & data platform)); Pro Medicus Limited has 2 segments (92.5% in Visage 7 Enterprise Imaging Platform (PACS / CloudPACS)).
  • Primary market structure: Quasi-Monopoly vs Oligopoly. Pricing power: Strong vs Strong.
  • Moat breadth: Auto Trader Group plc has 4 moat types across 2 domains; Pro Medicus Limited has 6 across 2.

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%

Pro Medicus Limited

Visage 7 Enterprise Imaging Platform (PACS / CloudPACS)

Market

Enterprise imaging / PACS and related modules for hospitals and integrated delivery networks (IDNs)

Geography

Primarily North America; also Europe and Australia

Customer

Hospitals, imaging centers, integrated delivery networks (IDNs)

Role

Healthcare IT software vendor / platform provider

Revenue share

92.5%

Side-by-side metrics

Auto Trader Group plc
Pro Medicus Limited
Ticker / Exchange
AUTO - London Stock Exchange
PME - ASX
Market cap (USD)
n/a
$22B
Gross margin (TTM)
n/a
77.8%
Operating margin (TTM)
n/a
72.1%
Net margin (TTM)
n/a
52.9%
Sector
Communication Services
Healthcare
Industry
n/a
Medical - Healthcare Information Services
HQ country
GB
AU
Primary segment
Autotrader (UK automotive marketplace & data platform)
Visage 7 Enterprise Imaging Platform (PACS / CloudPACS)
Market structure
Quasi-Monopoly
Oligopoly
Market share
75%-80% (reported)
55% (implied)
HHI estimate
n/a
n/a
Pricing power
Strong
Strong
Moat score
96 / 100
80 / 100
Moat domains
Network, Demand
Demand, Supply
Last update
2026-01-10
2026-01-11

Moat coverage

Shared moat types

Data Workflow Lockin

Auto Trader Group plc strengths

Two Sided NetworkHabit DefaultEcosystem Complements

Pro Medicus Limited strengths

Keystone ComponentOperational ExcellenceSuite BundlingSwitching Costs GeneralLong Term Contracts

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%

Pro Medicus Limited segments

Full profile >

Visage 7 Enterprise Imaging Platform (PACS / CloudPACS)

Oligopoly

92.5%

Visage RIS (Radiology Information System) and Promedicus.net

Oligopoly

7.5%

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.