VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 2, 2026

Stock Comparison

Amazon.com, Inc. vs SBA Communications Corporation

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

Amazon.com, Inc.

AMZN · NASDAQ

Market cap (USD)$2.4T
Gross margin (TTM)50.1%
Operating margin (TTM)11%
Net margin (TTM)11.1%
SectorConsumer
IndustrySpecialty Retail
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

SBA Communications Corporation

SBAC · NASDAQ

Market cap (USD)
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorReal Estate
IndustryREIT - Specialty
CountryUS
Data as of2026-01-02
Moat score
71/ 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 SBA Communications Corporation's moat claims, evidence, and risks.

View SBAC analysis

Comparison highlights

  • Moat score gap: Amazon.com, Inc. leads (87 / 100 vs 71 / 100 for SBA Communications Corporation).
  • Segment focus: Amazon.com, Inc. has 4 segments (73.5% in Amazon Stores (Retail, Marketplace, Prime Subscriptions)); SBA Communications Corporation has 3 segments (69.5% in Domestic Site Leasing).
  • Moat breadth: Amazon.com, Inc. has 10 moat types across 4 domains; SBA Communications Corporation has 4 across 2.

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%

SBA Communications Corporation

Domestic Site Leasing

Market

U.S. wireless macro tower leasing (multi-tenant co-location on communications towers)

Geography

United States and territories

Customer

Wireless service providers and other wireless network operators/tenants

Role

Independent tower owner/operator (REIT)

Revenue share

69.5%

Side-by-side metrics

Amazon.com, Inc.
SBA Communications Corporation
Ticker / Exchange
AMZN - NASDAQ
SBAC - NASDAQ
Market cap (USD)
$2.4T
n/a
Gross margin (TTM)
50.1%
n/a
Operating margin (TTM)
11%
n/a
Net margin (TTM)
11.1%
n/a
Sector
Consumer
Real Estate
Industry
Specialty Retail
REIT - Specialty
HQ country
US
US
Primary segment
Amazon Stores (Retail, Marketplace, Prime Subscriptions)
Domestic Site Leasing
Market structure
Oligopoly
Oligopoly
Market share
39%-42% (estimated)
16%-19% (implied)
HHI estimate
n/a
3,710
Pricing power
Moderate
Moderate
Moat score
87 / 100
71 / 100
Moat domains
Supply, Demand, Network, Financial
Supply, Demand
Last update
2025-12-29
2026-01-02

Moat coverage

Shared moat types

Long Term ContractsPhysical Network Density

Amazon.com, Inc. strengths

Capex Knowhow ScaleScope EconomiesTwo Sided NetworkSuite BundlingHabit DefaultNegative Working CapitalDistribution ControlData Network Effects

SBA Communications Corporation strengths

Scale Economies Unit CostOperational Excellence

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%

SBA Communications Corporation segments

Full profile >

Domestic Site Leasing

Oligopoly

69.5%

International Site Leasing

Oligopoly

24.8%

Site Development

Competitive

5.7%

Want the full wide moat stocks list?

Browse the full ranking of wide moat stocks, updated with moat scores and segment context.

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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.