VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Saturday, January 10, 2026

Stock Comparison

Pro Medicus Limited vs Waters Corporation

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

Pro Medicus Limited

PME · ASX

Market cap (USD)$22B
Gross margin (TTM)77.8%
Operating margin (TTM)72.1%
Net margin (TTM)52.9%
SectorHealthcare
IndustryMedical - Healthcare Information Services
CountryAU
Data as of
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 Pro Medicus Limited's moat claims, evidence, and risks.

View PME analysis

Waters Corporation

WAT · New York Stock Exchange

Market cap (USD)$23.7B
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorHealthcare
Industry
CountryUS
Data as of2026-01-09
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 Waters Corporation's moat claims, evidence, and risks.

View WAT analysis

Comparison highlights

  • Moat score gap: Pro Medicus Limited leads (80 / 100 vs 66 / 100 for Waters Corporation).
  • Segment focus: Pro Medicus Limited has 2 segments (92.5% in Visage 7 Enterprise Imaging Platform (PACS / CloudPACS)); Waters Corporation has 4 segments (34.9% in Waters instrument systems).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Strong vs Moderate.
  • Moat breadth: Pro Medicus Limited has 6 moat types across 2 domains; Waters Corporation has 7 across 2.

Primary market context

Pro Medicus Limited

Visage 7 Enterprise Imaging Platform (PACS / CloudPACS)

Market

Enterprise imaging / PACS and related modules for hospitals and integrated delivery networks (IDNs)

Geography

Primarily North America; also Europe and Australia

Customer

Hospitals, imaging centers, integrated delivery networks (IDNs)

Role

Healthcare IT software vendor / platform provider

Revenue share

92.5%

Waters Corporation

Waters instrument systems

Market

Liquid chromatography (LC/UPLC) and mass spectrometry (MS) analytical instrument systems (including LC-MS workflows and instrument control/data system software)

Geography

Global

Customer

Pharma/biotech, industrial, academic and government laboratories

Role

OEM + software/platform provider

Revenue share

34.9%

Side-by-side metrics

Pro Medicus Limited
Waters Corporation
Ticker / Exchange
PME - ASX
WAT - New York Stock Exchange
Market cap (USD)
$22B
$23.7B
Gross margin (TTM)
77.8%
n/a
Operating margin (TTM)
72.1%
n/a
Net margin (TTM)
52.9%
n/a
Sector
Healthcare
Healthcare
Industry
Medical - Healthcare Information Services
n/a
HQ country
AU
US
Primary segment
Visage 7 Enterprise Imaging Platform (PACS / CloudPACS)
Waters instrument systems
Market structure
Oligopoly
Oligopoly
Market share
55% (implied)
n/a
HHI estimate
n/a
n/a
Pricing power
Strong
Moderate
Moat score
80 / 100
66 / 100
Moat domains
Demand, Supply
Demand, Supply
Last update
2026-01-10
2026-01-09

Moat coverage

Shared moat types

Data Workflow LockinLong Term Contracts

Pro Medicus Limited strengths

Keystone ComponentOperational ExcellenceSuite BundlingSwitching Costs General

Waters Corporation strengths

Design In QualificationBrand TrustInstalled Base ConsumablesSupply Chain ControlService Field Network

Segment mix

Pro Medicus Limited segments

Full profile >

Visage 7 Enterprise Imaging Platform (PACS / CloudPACS)

Oligopoly

92.5%

Visage RIS (Radiology Information System) and Promedicus.net

Oligopoly

7.5%

Waters Corporation segments

Full profile >

Waters instrument systems

Oligopoly

34.9%

Chemistry consumables

Competitive

19.1%

Waters service & software maintenance

Competitive

34%

TA instrument systems & service

Oligopoly

12%

Want the full wide moat stocks list?

Browse the full ranking of wide moat stocks, updated with moat scores and segment context.

View the moat stocks list

Looking for expansion-stage stocks?

Proven models entering the expansion stage with unit economics that work.

View expansion-stage stocks

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.