VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Monday, December 29, 2025

Stock Comparison

Amazon.com, Inc. vs Zimmer Biomet Holdings, Inc.

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

Zimmer Biomet Holdings, Inc.

ZBH · New York Stock Exchange

Market cap (USD)
SectorHealthcare
CountryUS
Data as of2025-12-23
Moat score
72/ 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 Zimmer Biomet Holdings, Inc.'s moat claims, evidence, and risks.

View ZBH analysis

Comparison highlights

  • Moat score gap: Amazon.com, Inc. leads (87 / 100 vs 72 / 100 for Zimmer Biomet Holdings, Inc.).
  • Segment focus: Amazon.com, Inc. has 4 segments (73.5% in Amazon Stores (Retail, Marketplace, Prime Subscriptions)); Zimmer Biomet Holdings, Inc. has 4 segments (41.3% in Knees).
  • Moat breadth: Amazon.com, Inc. has 10 moat types across 4 domains; Zimmer Biomet Holdings, Inc. has 7 across 5.

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%

Zimmer Biomet Holdings, Inc.

Knees

Market

Knee reconstruction implants (primary, partial, revision) plus associated instruments and orthopedic robotics/navigation

Geography

Global

Customer

Hospitals and ambulatory surgery centers

Role

OEM manufacturer

Revenue share

41.3%

Side-by-side metrics

Amazon.com, Inc.
Zimmer Biomet Holdings, Inc.
Ticker / Exchange
AMZN - NASDAQ
ZBH - New York Stock Exchange
Market cap (USD)
$2.5T
n/a
Sector
Consumer
Healthcare
HQ country
US
US
Primary segment
Amazon Stores (Retail, Marketplace, Prime Subscriptions)
Knees
Market structure
Oligopoly
Oligopoly
Market share
39%-42% (estimated)
30.1% (reported)
HHI estimate
n/a
2,265
Pricing power
Moderate
Moderate
Moat score
87 / 100
72 / 100
Moat domains
Supply, Demand, Network, Financial
Demand, Supply, Legal, Financial, Network
Last update
2025-12-29
2025-12-23

Moat coverage

Shared moat types

Scope Economies

Amazon.com, Inc. strengths

Capex Knowhow ScaleLong Term ContractsTwo Sided NetworkPhysical Network DensitySuite BundlingHabit DefaultNegative Working CapitalDistribution ControlData Network Effects

Zimmer Biomet Holdings, Inc. strengths

Design In QualificationService Field NetworkRegulated Standards PipeBenchmark Pricing PowerEcosystem ComplementsData Workflow Lockin

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%

Zimmer Biomet Holdings, Inc. segments

Full profile >

Knees

Oligopoly

41.3%

Hips

Oligopoly

26%

S.E.T. (Sports Medicine, Extremities, Trauma, CMFT)

Competitive

24.3%

Technology & Data, Bone Cement and Surgical

Oligopoly

8.3%

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.