VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, January 7, 2026

Stock Comparison

General Dynamics Corporation vs ResMed Inc.

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

General Dynamics Corporation

GD · New York Stock Exchange

Market cap (USD)$95.9B
Gross margin (TTM)15.3%
Operating margin (TTM)10.3%
Net margin (TTM)8.2%
SectorIndustrials
IndustryAerospace & Defense
CountryUS
Data as of2025-12-29
Moat score
80/ 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 General Dynamics Corporation's moat claims, evidence, and risks.

View GD 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: General Dynamics Corporation leads (80 / 100 vs 76 / 100 for ResMed Inc.).
  • Segment focus: General Dynamics Corporation has 4 segments (30.1% in Marine Systems (Nuclear subs + surface shipbuilding)); ResMed Inc. has 2 segments (87.5% in Sleep and Breathing Health).
  • Primary market structure: Duopoly vs Oligopoly. Pricing power: Weak vs Moderate.
  • Moat breadth: General Dynamics Corporation has 11 moat types across 3 domains; ResMed Inc. has 7 across 2.

Primary market context

General Dynamics Corporation

Marine Systems (Nuclear subs + surface shipbuilding)

Market

U.S. Navy nuclear-powered submarine construction and major surface combatant shipbuilding/lifecycle services

Geography

United States

Customer

Government (primarily U.S. Navy)

Role

Prime contractor / shipbuilder / lifecycle services

Revenue share

30.1%

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

General Dynamics Corporation
ResMed Inc.
Ticker / Exchange
GD - New York Stock Exchange
RMD - New York Stock Exchange
Market cap (USD)
$95.9B
$36B
Gross margin (TTM)
15.3%
60.1%
Operating margin (TTM)
10.3%
33.2%
Net margin (TTM)
8.2%
27.4%
Sector
Industrials
Healthcare
Industry
Aerospace & Defense
Medical - Instruments & Supplies
HQ country
US
US
Primary segment
Marine Systems (Nuclear subs + surface shipbuilding)
Sleep and Breathing Health
Market structure
Duopoly
Oligopoly
Market share
45%-55% (estimated)
58%-66% (estimated)
HHI estimate
5,000
n/a
Pricing power
Weak
Moderate
Moat score
80 / 100
76 / 100
Moat domains
Demand, Supply, Legal
Demand, Legal
Last update
2025-12-29
2026-01-04

Moat coverage

Shared moat types

Brand TrustLong Term ContractsCompliance Advantage

General Dynamics Corporation strengths

Service Field NetworkRegulated Standards PipeCapex Knowhow ScaleGovernment Contracting RelationshipsDesign In QualificationProcurement InertiaCapacity MoatSuite Bundling

ResMed Inc. strengths

Installed Base ConsumablesData Workflow LockinIP Choke PointTraining Org Change Costs

Segment mix

General Dynamics Corporation segments

Full profile >

Aerospace (Gulfstream + Jet Aviation)

Oligopoly

23.6%

Marine Systems (Nuclear subs + surface shipbuilding)

Duopoly

30.1%

Combat Systems (Land vehicles + munitions)

Oligopoly

18.9%

Technologies (C5ISR + Federal IT)

Competitive

27.5%

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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Looking for expansion-stage stocks?

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.