VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 9, 2026

Stock Comparison

W.W. Grainger, Inc. vs ResMed Inc.

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

W.W. Grainger, Inc.

GWW · New York Stock Exchange

Market cap (USD)$48.3B
Gross margin (TTM)39.1%
Operating margin (TTM)14.1%
Net margin (TTM)9.8%
SectorIndustrials
IndustryIndustrial - Distribution
CountryUS
Data as of2026-01-01
Moat score
65/ 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 W.W. Grainger, Inc.'s moat claims, evidence, and risks.

View GWW 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 65 / 100 for W.W. Grainger, Inc.).
  • Segment focus: W.W. Grainger, Inc. has 3 segments (79.9% in High-Touch Solutions N.A.); ResMed Inc. has 2 segments (87.5% in Sleep and Breathing Health).
  • Primary market structure: Competitive vs Oligopoly. Pricing power: Moderate vs Moderate.
  • Moat breadth: W.W. Grainger, Inc. has 5 moat types across 2 domains; ResMed Inc. has 7 across 2.

Primary market context

W.W. Grainger, Inc.

High-Touch Solutions N.A.

Market

MRO (maintenance, repair and operations) products distribution and value-added inventory/procurement solutions

Geography

North America (U.S., Canada, Mexico, Puerto Rico)

Customer

Mid-size and large businesses with complex purchasing operations; also government and institutions

Role

Distributor / wholesaler + onsite inventory services

Revenue share

79.9%

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

W.W. Grainger, Inc.
ResMed Inc.
Ticker / Exchange
GWW - New York Stock Exchange
RMD - New York Stock Exchange
Market cap (USD)
$48.3B
$36B
Gross margin (TTM)
39.1%
60.1%
Operating margin (TTM)
14.1%
33.2%
Net margin (TTM)
9.8%
27.4%
Sector
Industrials
Healthcare
Industry
Industrial - Distribution
Medical - Instruments & Supplies
HQ country
US
US
Primary segment
High-Touch Solutions N.A.
Sleep and Breathing Health
Market structure
Competitive
Oligopoly
Market share
n/a
58%-66% (estimated)
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
65 / 100
76 / 100
Moat domains
Supply, Demand
Demand, Legal
Last update
2026-01-01
2026-01-04

Moat coverage

Shared moat types

Data Workflow Lockin

W.W. Grainger, Inc. strengths

Service Field NetworkScale Economies Unit CostScope EconomiesOperational Excellence

ResMed Inc. strengths

Installed Base ConsumablesBrand TrustCompliance AdvantageIP Choke PointLong Term ContractsTraining Org Change Costs

Segment mix

W.W. Grainger, Inc. segments

Full profile >

High-Touch Solutions N.A.

Competitive

79.9%

Endless Assortment

Competitive

18.3%

Other (Cromwell U.K. + captive insurance)

Competitive

1.8%

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.