VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Bio-Rad Laboratories, Inc. vs Intuitive Surgical, Inc.

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

Bio-Rad Laboratories, Inc.

BIO · New York Stock Exchange

Market cap (USD)
SectorHealthcare
CountryUS
Data as of2025-12-30
Moat score
61/ 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 Bio-Rad Laboratories, Inc.'s moat claims, evidence, and risks.

View BIO analysis

Intuitive Surgical, Inc.

ISRG · NASDAQ

Market cap (USD)
SectorHealthcare
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

Comparison highlights

  • Moat score gap: Intuitive Surgical, Inc. leads (83 / 100 vs 61 / 100 for Bio-Rad Laboratories, Inc.).
  • Segment focus: Bio-Rad Laboratories, Inc. has 2 segments (59.9% in Clinical Diagnostics); Intuitive Surgical, Inc. has 3 segments (60.8% in Instruments and Accessories).
  • Primary market structure: Oligopoly vs Monopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: Bio-Rad Laboratories, Inc. has 6 moat types across 3 domains; Intuitive Surgical, Inc. has 9 across 4.

Primary market context

Bio-Rad Laboratories, Inc.

Clinical Diagnostics

Market

In vitro diagnostics test systems, reagents/test kits, informatics, and clinical laboratory quality controls

Geography

Global

Customer

Hospital laboratories; diagnostic reference laboratories; transfusion laboratories; physician office laboratories

Role

IVD OEM / installed-base consumables supplier (systems + kits + controls)

Revenue share

59.9%

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%

Side-by-side metrics

Bio-Rad Laboratories, Inc.
Intuitive Surgical, Inc.
Ticker / Exchange
BIO - New York Stock Exchange
ISRG - NASDAQ
Market cap (USD)
n/a
n/a
Sector
Healthcare
Healthcare
HQ country
US
US
Primary segment
Clinical Diagnostics
Instruments and Accessories
Market structure
Oligopoly
Monopoly
Market share
9%-11% (implied)
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Strong
Moat score
61 / 100
83 / 100
Moat domains
Supply, Demand, Legal
Supply, Demand, Network, Legal
Last update
2025-12-30
2025-12-30

Moat coverage

Shared moat types

Capex Knowhow ScaleInstalled Base Consumables

Bio-Rad Laboratories, Inc. strengths

Scope EconomiesDistribution ControlSwitching Costs GeneralCompliance Advantage

Intuitive Surgical, Inc. strengths

Training Org Change CostsEcosystem ComplementsProcurement InertiaIP Choke PointService Field NetworkData Workflow LockinLong Term Contracts

Segment mix

Bio-Rad Laboratories, Inc. segments

Full profile >

Life Science

Competitive

40.1%

Clinical Diagnostics

Oligopoly

59.9%

Intuitive Surgical, Inc. segments

Full profile >

Systems

Quasi-Monopoly

23.5%

Instruments and Accessories

Monopoly

60.8%

Services

Monopoly

15.6%

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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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.