VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Monday, December 29, 2025

Stock Comparison

Amazon.com, Inc. vs Siemens Healthineers AG

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

Amazon.com, Inc.

AMZN · NASDAQ

Market cap (USD)$2.5T
SectorConsumer
CountryUS
Data as of2025-12-29
Moat score
87/ 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 Amazon.com, Inc.'s moat claims, evidence, and risks.

View AMZN analysis

Siemens Healthineers AG

SHL · XETRA

Market cap (USD)
SectorHealthcare
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: Amazon.com, Inc. leads (87 / 100 vs 68 / 100 for Siemens Healthineers AG).
  • Segment focus: Amazon.com, Inc. has 4 segments (73.5% in Amazon Stores (Retail, Marketplace, Prime Subscriptions)); Siemens Healthineers AG has 4 segments (54.6% in Imaging).
  • Moat breadth: Amazon.com, Inc. has 10 moat types across 4 domains; Siemens Healthineers AG has 8 across 3.

Primary market context

Amazon.com, Inc.

Amazon Stores (Retail, Marketplace, Prime Subscriptions)

Market

US retail ecommerce marketplace and online retail (integrated fulfillment + membership shipping)

Geography

United States

Customer

Consumers and third-party merchants

Role

Marketplace operator, retailer, and fulfillment provider

Revenue share

73.5%

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

Amazon.com, Inc.
Siemens Healthineers AG
Ticker / Exchange
AMZN - NASDAQ
SHL - XETRA
Market cap (USD)
$2.5T
n/a
Sector
Consumer
Healthcare
HQ country
US
DE
Primary segment
Amazon Stores (Retail, Marketplace, Prime Subscriptions)
Imaging
Market structure
Oligopoly
Oligopoly
Market share
39%-42% (estimated)
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
87 / 100
68 / 100
Moat domains
Supply, Demand, Network, Financial
Supply, Demand, Network
Last update
2025-12-29
2025-12-28

Moat coverage

Shared moat types

Capex Knowhow ScaleLong Term Contracts

Amazon.com, Inc. strengths

Scope EconomiesTwo Sided NetworkPhysical Network DensitySuite BundlingHabit DefaultNegative Working CapitalDistribution ControlData Network Effects

Siemens Healthineers AG strengths

Service Field NetworkData Workflow LockinInstalled Base ConsumablesDesign In QualificationEcosystem ComplementsSwitching Costs General

Segment mix

Amazon.com, Inc. segments

Full profile >

Amazon Web Services (AWS)

Oligopoly

16.9%

Amazon Stores (Retail, Marketplace, Prime Subscriptions)

Oligopoly

73.5%

Advertising Services (Amazon Ads / Retail Media)

Oligopoly

8.8%

Other (healthcare, content licensing/distribution, shipping services, co-branded credit card agreements, etc.)

Competitive

0.9%

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.