VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 2, 2026

Stock Comparison

American Tower Corporation vs SBA Communications Corporation

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

American Tower Corporation

AMT · New York Stock Exchange

Market cap (USD)$82.1B
Gross margin (TTM)74.6%
Operating margin (TTM)45.9%
Net margin (TTM)28.1%
SectorReal Estate
IndustryREIT - Specialty
CountryUS
Data as of2025-12-31
Moat score
76/ 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 American Tower Corporation's moat claims, evidence, and risks.

View AMT 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: American Tower Corporation leads (76 / 100 vs 71 / 100 for SBA Communications Corporation).
  • Segment focus: American Tower Corporation has 3 segments; SBA Communications Corporation has 3 segments (69.5% in Domestic Site Leasing).
  • Moat breadth: American Tower Corporation has 6 moat types across 4 domains; SBA Communications Corporation has 4 across 2.

Primary market context

American Tower Corporation

U.S. & Canada Communications Sites

Market

Wireless communications site leasing (macro towers, rooftops and DAS)

Geography

United States and Canada

Customer

Wireless carriers and other tenants (broadcast, data, government/municipal)

Role

Independent owner/operator of communications real estate (towerco)

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

American Tower Corporation
SBA Communications Corporation
Ticker / Exchange
AMT - New York Stock Exchange
SBAC - NASDAQ
Market cap (USD)
$82.1B
n/a
Gross margin (TTM)
74.6%
n/a
Operating margin (TTM)
45.9%
n/a
Net margin (TTM)
28.1%
n/a
Sector
Real Estate
Real Estate
Industry
REIT - Specialty
REIT - Specialty
HQ country
US
US
Primary segment
U.S. & Canada Communications Sites
Domestic Site Leasing
Market structure
Oligopoly
Oligopoly
Market share
n/a
16%-19% (implied)
HHI estimate
n/a
3,710
Pricing power
Moderate
Moderate
Moat score
76 / 100
71 / 100
Moat domains
Demand, Legal, Supply, Network
Supply, Demand
Last update
2025-12-31
2026-01-02

Moat coverage

Shared moat types

Long Term ContractsPhysical Network Density

American Tower Corporation strengths

Permits Rights Of WaySwitching Costs GeneralInteroperability HubCapacity Moat

SBA Communications Corporation strengths

Scale Economies Unit CostOperational Excellence

Segment mix

American Tower Corporation segments

Full profile >

U.S. & Canada Communications Sites

Oligopoly

n/a

International Communications Sites

Oligopoly

n/a

Data Centers

Competitive

n/a

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?

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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.