WIDE MOAT STOCKS COMPARISON

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Stock Comparison

American Express Company vs Microsoft Corporation

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

American Express Company

AXP · New York Stock Exchange

Market cap (USD)$205.7B
Gross margin (TTM)—
Operating margin (TTM)—
Net margin (TTM)15.1%
SectorFinancials
IndustryBanks and capital markets
CountryUS
Data as of2026-08-23
80/100
Moat score

Weighted across the company's segments.

Full stock profile

Dive deeper into American Express Company's moat claims, evidence, and risks.

View AXP analysis

Microsoft Corporation

MSFT · The Nasdaq Global Select Market

Market cap (USD)$3.9T
Gross margin (TTM)67.9%
Operating margin (TTM)46.8%
Net margin (TTM)40.3%
SectorTechnology
IndustryInfrastructure software
CountryUS
Data as of2026-08-23
95/100
Moat score

Weighted across the company's segments.

Full stock profile

Dive deeper into Microsoft Corporation's moat claims, evidence, and risks.

View MSFT analysis

Comparison highlights

  • Moat score gap: Microsoft Corporation leads (95 / 100 vs 80 / 100 for American Express Company).
  • Segment focus: American Express Company has 4 segments (48% in U.S. Consumer Services); Microsoft Corporation has 2 segments (80.8% in Agents and Infra).
  • Moat breadth: American Express Company has 6 moat types across 2 domains; Microsoft Corporation has 8 across 4.

Primary market context

American Express Company

U.S. Consumer Services

Market

U.S. premium consumer credit, charge, banking, lending, travel, dining and lifestyle card services

Geography

United States

Customer

Affluent and mass-affluent U.S. consumers

Role

Issuer, lender, rewards platform, banking provider, travel/dining service provider and closed-loop network participant

Revenue share

48%

Microsoft Corporation

Agents and Infra

Market

Cloud infrastructure, commercial and consumer productivity and AI applications, developer tools, business solutions and server licensing

Geography

Global

Customer

Enterprises, governments, developers, households and individual productivity subscribers

Role

Integrated application, model and infrastructure platform

Revenue share

80.8%

Side-by-side metrics

American Express Company
Microsoft Corporation
Ticker / Exchange
AXP - New York Stock Exchange
MSFT - The Nasdaq Global Select Market
Market cap (USD)
$205.7B
$3.9T
Gross margin (TTM)
n/a
67.9%
Operating margin (TTM)
n/a
46.8%
Net margin (TTM)
15.1%
40.3%
Sector
Financials
Technology
Industry
Banks and capital markets
Infrastructure software
HQ country
US
US
Primary segment
U.S. Consumer Services
Agents and Infra
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Strong
Strong
Moat score
80 / 100
95 / 100
Moat domains
Demand, Network
Demand, Network, Supply, Legal
Last update
2026-09-05
2026-09-05

Moat coverage

Shared moat types

Data Workflow LockinTwo Sided Network

American Express Company strengths

Brand TrustHabit DefaultData Network EffectsProcurement Inertia

Microsoft Corporation strengths

Suite BundlingLong Term ContractsCapex Knowhow ScaleEcosystem ComplementsDefault OS GatewayContent Rights Currency

Segment mix

American Express Company segments

Full profile >

U.S. Consumer Services

Oligopoly

48%

Commercial Services

Oligopoly

23.3%

International Card Services

Competitive

17.9%

Global Merchant and Network Services

Oligopoly

10.7%

Microsoft Corporation segments

Full profile >

Agents and Infra

Oligopoly

80.8%

Devices and Consumer

Competitive

19.2%

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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.