VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 8, 2026

Stock Comparison

CSL Limited vs ResMed Inc.

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

CSL Limited

CSL · ASX

Market cap (USD)$81.5B
Gross margin (TTM)49%
Operating margin (TTM)23.5%
Net margin (TTM)23.1%
SectorHealthcare
IndustryBiotechnology
CountryAU
Data as of2026-01-02
Moat score
77/ 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 CSL Limited's moat claims, evidence, and risks.

View CSL 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: CSL Limited leads (77 / 100 vs 76 / 100 for ResMed Inc.).
  • Segment focus: CSL Limited has 3 segments (71.7% in CSL Behring); ResMed Inc. has 2 segments (87.5% in Sleep and Breathing Health).
  • Moat breadth: CSL Limited has 7 moat types across 3 domains; ResMed Inc. has 7 across 2.

Primary market context

CSL Limited

CSL Behring

Market

Plasma-derived therapies (immunoglobulins, albumin, coagulation factors) plus recombinant and gene therapies for rare and serious diseases

Geography

Global

Customer

Hospitals, specialty pharmacies, physicians; payers and national health systems

Role

Vertically integrated biopharma (plasma collection -> fractionation/manufacturing -> commercial distribution)

Revenue share

71.7%

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

CSL Limited
ResMed Inc.
Ticker / Exchange
CSL - ASX
RMD - New York Stock Exchange
Market cap (USD)
$81.5B
$36B
Gross margin (TTM)
49%
60.1%
Operating margin (TTM)
23.5%
33.2%
Net margin (TTM)
23.1%
27.4%
Sector
Healthcare
Healthcare
Industry
Biotechnology
Medical - Instruments & Supplies
HQ country
AU
US
Primary segment
CSL Behring
Sleep and Breathing Health
Market structure
Oligopoly
Oligopoly
Market share
n/a
58%-66% (estimated)
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
77 / 100
76 / 100
Moat domains
Supply, Legal, Demand
Demand, Legal
Last update
2026-01-02
2026-01-04

Moat coverage

Shared moat types

No overlap yet.

CSL Limited strengths

Supply Chain ControlPhysical Network DensityOperational ExcellenceGovernment Contracting RelationshipsRegulated Standards PipeCapacity MoatProcurement Inertia

ResMed Inc. strengths

Installed Base ConsumablesData Workflow LockinBrand TrustCompliance AdvantageIP Choke PointLong Term ContractsTraining Org Change Costs

Segment mix

CSL Limited segments

Full profile >

CSL Behring

Oligopoly

71.7%

CSL Seqirus

Oligopoly

13.9%

CSL Vifor

Oligopoly

14.4%

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.