VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Amgen Inc. vs American Tower Corporation

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

Amgen Inc.

AMGN · Nasdaq Stock Market

Market cap (USD)
SectorHealthcare
CountryUS
Data as of2025-12-22
Moat score
70/ 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 Amgen Inc.'s moat claims, evidence, and risks.

View AMGN analysis

American Tower Corporation

AMT · New York Stock Exchange

Market cap (USD)
SectorReal Estate
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

Comparison highlights

  • Moat score gap: American Tower Corporation leads (76 / 100 vs 70 / 100 for Amgen Inc.).
  • Segment focus: Amgen Inc. has 3 segments (80.1% in Core Innovative Medicines); American Tower Corporation has 3 segments.
  • Primary market structure: Competitive vs Oligopoly. Pricing power: Moderate vs Moderate.
  • Moat breadth: Amgen Inc. has 5 moat types across 3 domains; American Tower Corporation has 6 across 4.

Primary market context

Amgen Inc.

Core Innovative Medicines

Market

Branded biopharmaceutical therapies for common diseases (bone health, inflammation, oncology, cardiovascular and other specialty areas)

Geography

Global

Customer

Payers, providers, and pharmacies

Role

Drug developer/manufacturer

Revenue share

80.1%

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)

Side-by-side metrics

Amgen Inc.
American Tower Corporation
Ticker / Exchange
AMGN - Nasdaq Stock Market
AMT - New York Stock Exchange
Market cap (USD)
n/a
n/a
Sector
Healthcare
Real Estate
HQ country
US
US
Primary segment
Core Innovative Medicines
U.S. & Canada Communications Sites
Market structure
Competitive
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
70 / 100
76 / 100
Moat domains
Legal, Supply, Demand
Demand, Legal, Supply, Network
Last update
2025-12-22
2025-12-31

Moat coverage

Shared moat types

No overlap yet.

Amgen Inc. strengths

IP Choke PointRegulated Standards PipeCapex Knowhow ScaleBrand TrustLearning Curve Yield

American Tower Corporation strengths

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

Segment mix

Amgen Inc. segments

Full profile >

Core Innovative Medicines

Competitive

80.1%

Rare Disease Portfolio (Horizon + others)

Quasi-Monopoly

13.3%

Biosimilars

Oligopoly

6.6%

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

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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.