VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 8, 2026

Stock Comparison

Intuitive Surgical, Inc. vs ResMed Inc.

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

Intuitive Surgical, Inc.

ISRG · NASDAQ

Market cap (USD)$202.3B
Gross margin (TTM)66.4%
Operating margin (TTM)29.3%
Net margin (TTM)28.6%
SectorHealthcare
IndustryMedical - Instruments & Supplies
CountryUS
Data as of2025-12-30
Moat score
83/ 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 Intuitive Surgical, Inc.'s moat claims, evidence, and risks.

View ISRG 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: Intuitive Surgical, Inc. leads (83 / 100 vs 76 / 100 for ResMed Inc.).
  • Segment focus: Intuitive Surgical, Inc. has 3 segments (60.8% in Instruments and Accessories); ResMed Inc. has 2 segments (87.5% in Sleep and Breathing Health).
  • Primary market structure: Monopoly vs Oligopoly. Pricing power: Strong vs Moderate.
  • Moat breadth: Intuitive Surgical, Inc. has 9 moat types across 4 domains; ResMed Inc. has 7 across 2.

Primary market context

Intuitive Surgical, Inc.

Instruments and Accessories

Market

Proprietary robotic surgery instruments, accessories, and consumables used per procedure on the da Vinci (and Ion) installed base

Geography

Global

Customer

Hospitals and surgery centers purchasing consumables; surgeons and OR teams as end users

Role

Consumables OEM within proprietary platform

Revenue share

60.8%

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

Intuitive Surgical, Inc.
ResMed Inc.
Ticker / Exchange
ISRG - NASDAQ
RMD - New York Stock Exchange
Market cap (USD)
$202.3B
$36B
Gross margin (TTM)
66.4%
60.1%
Operating margin (TTM)
29.3%
33.2%
Net margin (TTM)
28.6%
27.4%
Sector
Healthcare
Healthcare
Industry
Medical - Instruments & Supplies
Medical - Instruments & Supplies
HQ country
US
US
Primary segment
Instruments and Accessories
Sleep and Breathing Health
Market structure
Monopoly
Oligopoly
Market share
n/a
58%-66% (estimated)
HHI estimate
n/a
n/a
Pricing power
Strong
Moderate
Moat score
83 / 100
76 / 100
Moat domains
Supply, Demand, Network, Legal
Demand, Legal
Last update
2025-12-30
2026-01-04

Moat coverage

Shared moat types

Training Org Change CostsInstalled Base ConsumablesIP Choke PointData Workflow LockinLong Term Contracts

Intuitive Surgical, Inc. strengths

Capex Knowhow ScaleEcosystem ComplementsProcurement InertiaService Field Network

ResMed Inc. strengths

Brand TrustCompliance Advantage

Segment mix

Intuitive Surgical, Inc. segments

Full profile >

Systems

Quasi-Monopoly

23.5%

Instruments and Accessories

Monopoly

60.8%

Services

Monopoly

15.6%

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.