VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Saturday, January 10, 2026

Stock Comparison

Intuitive Surgical, Inc. vs Waters Corporation

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

Intuitive Surgical, Inc.

ISRG · NASDAQ

Market cap (USD)$209.4B
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

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: Intuitive Surgical, Inc. leads (83 / 100 vs 66 / 100 for Waters Corporation).
  • Segment focus: Intuitive Surgical, Inc. has 3 segments (60.8% in Instruments and Accessories); Waters Corporation has 4 segments (34.9% in Waters instrument systems).
  • Primary market structure: Monopoly vs Oligopoly. Pricing power: Strong vs Moderate.
  • Moat breadth: Intuitive Surgical, Inc. has 9 moat types across 4 domains; Waters Corporation 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%

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

Intuitive Surgical, Inc.
Waters Corporation
Ticker / Exchange
ISRG - NASDAQ
WAT - New York Stock Exchange
Market cap (USD)
$209.4B
$23.7B
Gross margin (TTM)
66.4%
n/a
Operating margin (TTM)
29.3%
n/a
Net margin (TTM)
28.6%
n/a
Sector
Healthcare
Healthcare
Industry
Medical - Instruments & Supplies
n/a
HQ country
US
US
Primary segment
Instruments and Accessories
Waters instrument systems
Market structure
Monopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Strong
Moderate
Moat score
83 / 100
66 / 100
Moat domains
Supply, Demand, Network, Legal
Demand, Supply
Last update
2025-12-30
2026-01-09

Moat coverage

Shared moat types

Installed Base ConsumablesService Field NetworkData Workflow LockinLong Term Contracts

Intuitive Surgical, Inc. strengths

Capex Knowhow ScaleTraining Org Change CostsEcosystem ComplementsProcurement InertiaIP Choke Point

Waters Corporation strengths

Design In QualificationBrand TrustSupply Chain Control

Segment mix

Intuitive Surgical, Inc. segments

Full profile >

Systems

Quasi-Monopoly

23.5%

Instruments and Accessories

Monopoly

60.8%

Services

Monopoly

15.6%

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?

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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.