VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 8, 2026

Stock Comparison

American Express Company vs ResMed Inc.

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)$265B
Gross margin (TTM)83%
Operating margin (TTM)17.1%
Net margin (TTM)13.4%
SectorFinancials
IndustryFinancial - Credit Services
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

ResMed Inc.

RMD · New York Stock Exchange

Market cap (USD)$36B
Gross margin (TTM)60.1%
Operating margin (TTM)33.2%
Net margin (TTM)27.4%
SectorHealthcare
IndustryMedical - Instruments & Supplies
CountryUS
Data as of2026-01-04
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 ResMed Inc.'s moat claims, evidence, and risks.

View RMD analysis

Comparison highlights

  • Moat score gap: ResMed Inc. leads (76 / 100 vs 52 / 100 for American Express Company).
  • Segment focus: American Express Company has 4 segments (47.5% in U.S. Consumer Services (USCS)); ResMed Inc. has 2 segments (87.5% in Sleep and Breathing Health).
  • Primary market structure: Competitive vs Oligopoly. Pricing power: n/a vs Moderate.
  • Moat breadth: American Express Company has 8 moat types across 3 domains; ResMed Inc. has 7 across 2.

Primary market context

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%

ResMed Inc.

Sleep and Breathing Health

Market

Sleep apnea and respiratory care devices and related consumables (PAP, masks, ventilation) plus connected monitoring services

Geography

Global

Customer

DME/HME providers, sleep clinics, hospitals, patients

Role

Medical device OEM + connected care software/data services

Revenue share

87.5%

Side-by-side metrics

American Express Company
ResMed Inc.
Ticker / Exchange
AXP - New York Stock Exchange
RMD - New York Stock Exchange
Market cap (USD)
$265B
$36B
Gross margin (TTM)
83%
60.1%
Operating margin (TTM)
17.1%
33.2%
Net margin (TTM)
13.4%
27.4%
Sector
Financials
Healthcare
Industry
Financial - Credit Services
Medical - Instruments & Supplies
HQ country
US
US
Primary segment
U.S. Consumer Services (USCS)
Sleep and Breathing Health
Market structure
Competitive
Oligopoly
Market share
n/a
58%-66% (estimated)
HHI estimate
n/a
n/a
Pricing power
n/a
Moderate
Moat score
52 / 100
76 / 100
Moat domains
Demand, Financial, Network
Demand, Legal
Last update
2025-12-30
2026-01-04

Moat coverage

Shared moat types

Brand TrustLong Term ContractsTraining Org Change Costs

American Express Company strengths

Switching Costs GeneralCost Of Capital AdvantageEcosystem ComplementsTwo Sided NetworkData Network Effects

ResMed Inc. strengths

Installed Base ConsumablesData Workflow LockinCompliance AdvantageIP Choke Point

Segment mix

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%

ResMed Inc. segments

Full profile >

Sleep and Breathing Health

Oligopoly

87.5%

Residential Care Software

Competitive

12.5%

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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Proven models entering the expansion stage with unit economics that work.

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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.