VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Amgen Inc. vs American Express Company

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 Express Company

AXP · New York Stock Exchange

Market cap (USD)
SectorFinancials
CountryUS
Data as of2025-12-30
Moat score
52/ 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 Express Company's moat claims, evidence, and risks.

View AXP analysis

Comparison highlights

  • Moat score gap: Amgen Inc. leads (70 / 100 vs 52 / 100 for American Express Company).
  • Segment focus: Amgen Inc. has 3 segments (80.1% in Core Innovative Medicines); American Express Company has 4 segments (47.5% in U.S. Consumer Services (USCS)).
  • Primary market structure: Competitive vs Competitive. Pricing power: Moderate vs n/a.
  • Moat breadth: Amgen Inc. has 5 moat types across 3 domains; American Express Company has 8 across 3.

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 Express Company

U.S. Consumer Services (USCS)

Market

U.S. premium consumer card issuing (charge and credit) and attached consumer banking and financing

Geography

United States

Customer

Consumers

Role

Issuer (proprietary cards) and consumer lender/services

Revenue share

47.5%

Side-by-side metrics

Amgen Inc.
American Express Company
Ticker / Exchange
AMGN - Nasdaq Stock Market
AXP - New York Stock Exchange
Market cap (USD)
n/a
n/a
Sector
Healthcare
Financials
HQ country
US
US
Primary segment
Core Innovative Medicines
U.S. Consumer Services (USCS)
Market structure
Competitive
Competitive
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
n/a
Moat score
70 / 100
52 / 100
Moat domains
Legal, Supply, Demand
Demand, Financial, Network
Last update
2025-12-22
2025-12-30

Moat coverage

Shared moat types

Brand Trust

Amgen Inc. strengths

IP Choke PointRegulated Standards PipeCapex Knowhow ScaleLearning Curve Yield

American Express Company strengths

Switching Costs GeneralLong Term ContractsCost Of Capital AdvantageTraining Org Change CostsEcosystem ComplementsTwo Sided NetworkData Network Effects

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 Express Company segments

Full profile >

U.S. Consumer Services (USCS)

Competitive

47.5%

Commercial Services (CS)

Competitive

23.9%

International Card Services (ICS)

Competitive

17.3%

Global Merchant and Network Services (GMNS)

Oligopoly

11.3%

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.