VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 2, 2026

Stock Comparison

American Tower Corporation vs AstraZeneca PLC

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

AstraZeneca PLC

AZN · London Stock Exchange

Market cap (USD)
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorHealthcare
Industry
CountryGB
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 AstraZeneca PLC's moat claims, evidence, and risks.

View AZN analysis

Comparison highlights

  • Moat score gap: American Tower Corporation leads (76 / 100 vs 71 / 100 for AstraZeneca PLC).
  • Segment focus: American Tower Corporation has 3 segments; AstraZeneca PLC has 6 segments (41% in Oncology).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: American Tower Corporation has 6 moat types across 4 domains; AstraZeneca PLC has 4 across 3.

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)

AstraZeneca PLC

Oncology

Market

Innovator oncology therapeutics (branded prescription medicines)

Geography

Global

Customer

Hospitals, oncology clinics, payers

Role

Innovator biopharmaceutical company

Revenue share

41%

Side-by-side metrics

American Tower Corporation
AstraZeneca PLC
Ticker / Exchange
AMT - New York Stock Exchange
AZN - London Stock Exchange
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
Healthcare
Industry
REIT - Specialty
n/a
HQ country
US
GB
Primary segment
U.S. & Canada Communications Sites
Oncology
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Strong
Moat score
76 / 100
71 / 100
Moat domains
Demand, Legal, Supply, Network
Legal, Supply, Demand
Last update
2025-12-31
2026-01-02

Moat coverage

Shared moat types

No overlap yet.

American Tower Corporation strengths

Long Term ContractsPermits Rights Of WayPhysical Network DensitySwitching Costs GeneralInteroperability HubCapacity Moat

AstraZeneca PLC strengths

Regulated Standards PipeIP Choke PointCapex Knowhow ScaleBrand Trust

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

AstraZeneca PLC segments

Full profile >

Oncology

Oligopoly

41%

Cardiovascular, Renal and Metabolism (CVRM)

Competitive

23%

Respiratory & Immunology (R&I)

Oligopoly

15%

Vaccines & Immune Therapies (V&I)

Oligopoly

3%

Rare Disease

Oligopoly

16%

Other Medicines

Competitive

2%

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.