VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

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Wednesday, December 31, 2025

Stock Comparison

Abbott Laboratories vs Thermo Fisher Scientific Inc.

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

Abbott Laboratories

ABT · New York Stock Exchange

Market cap (USD)$219.2B
SectorHealthcare
CountryUS
Data as of2025-12-30
Moat score
64/ 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 Abbott Laboratories's moat claims, evidence, and risks.

View ABT analysis

Thermo Fisher Scientific Inc.

TMO · New York Stock Exchange

Market cap (USD)$213.3B
SectorHealthcare
CountryUS
Data as of2025-12-22
Moat score
64/ 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 Thermo Fisher Scientific Inc.'s moat claims, evidence, and risks.

View TMO analysis

Comparison highlights

  • Moat score: both at 64 / 100.
  • Segment focus: Abbott Laboratories has 7 segments (26.7% in Cardiovascular & Electrophysiology Devices); Thermo Fisher Scientific Inc. has 4 segments (53.6% in Laboratory Products and Biopharma Services).
  • Primary market structure: Oligopoly vs Competitive. Pricing power: Moderate vs Moderate.
  • Moat breadth: Abbott Laboratories has 10 moat types across 3 domains; Thermo Fisher Scientific Inc. has 8 across 3.

Primary market context

Abbott Laboratories

Cardiovascular & Electrophysiology Devices

Market

Cardiovascular, electrophysiology, rhythm management, structural heart and heart failure devices

Geography

Global

Customer

Hospitals, ambulatory surgery centers, cardiologists/electrophysiologists

Role

Implantable device manufacturer

Revenue share

26.7%

Thermo Fisher Scientific Inc.

Laboratory Products and Biopharma Services

Market

Laboratory supplies distribution/market channel plus outsourced biopharma services (CDMO/CRO)

Geography

Global

Customer

Pharma & biotech; academic/government labs; industrial and clinical laboratories

Role

Distributor/market channel and outsourced services provider

Revenue share

53.6%

Side-by-side metrics

Abbott Laboratories
Thermo Fisher Scientific Inc.
Ticker / Exchange
ABT - New York Stock Exchange
TMO - New York Stock Exchange
Market cap (USD)
$219.2B
$213.3B
Sector
Healthcare
Healthcare
HQ country
US
US
Primary segment
Cardiovascular & Electrophysiology Devices
Laboratory Products and Biopharma Services
Market structure
Oligopoly
Competitive
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
64 / 100
64 / 100
Moat domains
Demand, Legal, Supply
Demand, Supply, Legal
Last update
2025-12-30
2025-12-22

Moat coverage

Shared moat types

Brand TrustProcurement InertiaInstalled Base ConsumablesDistribution Control

Abbott Laboratories strengths

Data Workflow LockinGovernment Contracting RelationshipsCompliance AdvantageScale Economies Unit CostTraining Org Change CostsIP Choke Point

Thermo Fisher Scientific Inc. strengths

Format Lock InService Field NetworkRegulated Standards PipeCapacity Moat

Segment mix

Abbott Laboratories segments

Full profile >

Established Pharmaceutical Products

Competitive

12.4%

Diagnostic Products

Oligopoly

22.3%

Pediatric Nutrition

Oligopoly

9.6%

Adult Nutrition

Oligopoly

10.5%

Diabetes Care (CGM & glucose monitoring)

Duopoly

16.2%

Cardiovascular & Electrophysiology Devices

Oligopoly

26.7%

Neuromodulation Devices

Oligopoly

2.3%

Thermo Fisher Scientific Inc. segments

Full profile >

Life Sciences Solutions

Oligopoly

19%

Analytical Instruments

Oligopoly

17%

Specialty Diagnostics

Oligopoly

10.4%

Laboratory Products and Biopharma Services

Competitive

53.6%

Want the full wide moat stocks list?

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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.