VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 8, 2026

Stock Comparison

Paychex, Inc. vs ResMed Inc.

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

Paychex, Inc.

PAYX · NASDAQ Global Select Market

Market cap (USD)$39.4B
Gross margin (TTM)73.4%
Operating margin (TTM)37.1%
Net margin (TTM)26.5%
SectorIndustrials
IndustryStaffing & Employment Services
CountryUS
Data as of2026-01-04
Moat score
66/ 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 Paychex, Inc.'s moat claims, evidence, and risks.

View PAYX 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 66 / 100 for Paychex, Inc.).
  • Segment focus: Paychex, Inc. has 3 segments (73% in Management Solutions); ResMed Inc. has 2 segments (87.5% in Sleep and Breathing Health).
  • Moat breadth: Paychex, Inc. has 7 moat types across 4 domains; ResMed Inc. has 7 across 2.

Primary market context

Paychex, Inc.

Management Solutions

Market

Payroll processing and integrated HCM solutions for SMB and mid-market employers

Geography

United States (primarily)

Customer

Employers (SMB and mid-market)

Role

HCM SaaS + outsourced payroll/HR service provider

Revenue share

73%

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

Paychex, Inc.
ResMed Inc.
Ticker / Exchange
PAYX - NASDAQ Global Select Market
RMD - New York Stock Exchange
Market cap (USD)
$39.4B
$36B
Gross margin (TTM)
73.4%
60.1%
Operating margin (TTM)
37.1%
33.2%
Net margin (TTM)
26.5%
27.4%
Sector
Industrials
Healthcare
Industry
Staffing & Employment Services
Medical - Instruments & Supplies
HQ country
US
US
Primary segment
Management Solutions
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
66 / 100
76 / 100
Moat domains
Demand, Supply, Legal, Financial
Demand, Legal
Last update
2026-01-04
2026-01-04

Moat coverage

Shared moat types

Data Workflow LockinCompliance Advantage

Paychex, Inc. strengths

Suite BundlingService Field NetworkUnderwriting Risk PoolingSwitching Costs GeneralFloat Prepayment

ResMed Inc. strengths

Installed Base ConsumablesBrand TrustIP Choke PointLong Term ContractsTraining Org Change Costs

Segment mix

Paychex, Inc. segments

Full profile >

Management Solutions

Oligopoly

73%

PEO and Insurance Solutions

Competitive

24.1%

Client funds float (interest on funds held for clients)

Oligopoly

2.9%

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?

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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.