VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Sunday, January 11, 2026

Stock Comparison

Auto Trader Group plc vs Siemens Healthineers AG

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

Siemens Healthineers AG

SHL · XETRA

Market cap (USD)$52.2B
Gross margin (TTM)38.6%
Operating margin (TTM)14.7%
Net margin (TTM)9.2%
SectorHealthcare
IndustryMedical - Devices
CountryDE
Data as of2025-12-28
Moat score
68/ 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 Siemens Healthineers AG's moat claims, evidence, and risks.

View SHL analysis

Comparison highlights

  • Moat score gap: Auto Trader Group plc leads (96 / 100 vs 68 / 100 for Siemens Healthineers AG).
  • Segment focus: Auto Trader Group plc has 2 segments (93.3% in Autotrader (UK automotive marketplace & data platform)); Siemens Healthineers AG has 4 segments (54.6% in Imaging).
  • 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; Siemens Healthineers AG has 8 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%

Siemens Healthineers AG

Imaging

Market

Diagnostic medical imaging equipment and related software/services (MRI, CT, X-ray, molecular imaging, ultrasound)

Geography

Global

Customer

Hospitals, imaging centers, clinics, and integrated delivery networks

Role

OEM + digital platform and service provider

Revenue share

54.6%

Side-by-side metrics

Auto Trader Group plc
Siemens Healthineers AG
Ticker / Exchange
AUTO - London Stock Exchange
SHL - XETRA
Market cap (USD)
n/a
$52.2B
Gross margin (TTM)
n/a
38.6%
Operating margin (TTM)
n/a
14.7%
Net margin (TTM)
n/a
9.2%
Sector
Communication Services
Healthcare
Industry
n/a
Medical - Devices
HQ country
GB
DE
Primary segment
Autotrader (UK automotive marketplace & data platform)
Imaging
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
68 / 100
Moat domains
Network, Demand
Supply, Demand, Network
Last update
2026-01-10
2025-12-28

Moat coverage

Shared moat types

Data Workflow LockinEcosystem Complements

Auto Trader Group plc strengths

Two Sided NetworkHabit Default

Siemens Healthineers AG strengths

Service Field NetworkCapex Knowhow ScaleLong Term ContractsInstalled Base ConsumablesDesign In QualificationSwitching Costs General

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%

Siemens Healthineers AG segments

Full profile >

Imaging

Oligopoly

54.6%

Diagnostics

Oligopoly

18.7%

Varian

Oligopoly

17.6%

Advanced Therapies

Oligopoly

9.1%

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.