VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 2, 2026

Stock Comparison

AMETEK, Inc. vs GSK plc

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

AMETEK, Inc.

AME · New York Stock Exchange

Market cap (USD)$47.3B
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorIndustrials
Industry
CountryUS
Data as of2026-01-02
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 AMETEK, Inc.'s moat claims, evidence, and risks.

View AME analysis

GSK plc

GSK · London Stock Exchange

Market cap (USD)$73.6B
Gross margin (TTM)72.4%
Operating margin (TTM)23.5%
Net margin (TTM)17.1%
SectorHealthcare
IndustryDrug Manufacturers - General
CountryGB
Data as of2025-12-28
Moat score
62/ 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 GSK plc's moat claims, evidence, and risks.

View GSK analysis

Comparison highlights

  • Moat score gap: AMETEK, Inc. leads (66 / 100 vs 62 / 100 for GSK plc).
  • Segment focus: AMETEK, Inc. has 2 segments (67.1% in Electronic Instruments Group (EIG)); GSK plc has 3 segments (37.6% in Specialty Medicines).
  • Moat breadth: AMETEK, Inc. has 3 moat types across 1 domains; GSK plc has 4 across 3.

Primary market context

AMETEK, Inc.

Electronic Instruments Group (EIG)

Market

Advanced analytical, test and measurement instruments

Geography

Global

Customer

B2B (process, industrial, aerospace, medical, research)

Role

Instrument/OEM supplier

Revenue share

67.1%

GSK plc

Specialty Medicines

Market

Branded specialty pharmaceuticals (HIV, oncology, immunology/respiratory)

Geography

Global

Customer

Hospitals, specialist physicians, payers

Role

Innovator & branded manufacturer

Revenue share

37.6%

Side-by-side metrics

AMETEK, Inc.
GSK plc
Ticker / Exchange
AME - New York Stock Exchange
GSK - London Stock Exchange
Market cap (USD)
$47.3B
$73.6B
Gross margin (TTM)
n/a
72.4%
Operating margin (TTM)
n/a
23.5%
Net margin (TTM)
n/a
17.1%
Sector
Industrials
Healthcare
Industry
n/a
Drug Manufacturers - General
HQ country
US
GB
Primary segment
Electronic Instruments Group (EIG)
Specialty Medicines
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Strong
Strong
Moat score
66 / 100
62 / 100
Moat domains
Supply
Supply, Legal, Demand
Last update
2026-01-02
2025-12-28

Moat coverage

Shared moat types

Capex Knowhow Scale

AMETEK, Inc. strengths

Operational ExcellenceScope Economies

GSK plc strengths

Compliance AdvantageIP Choke PointSwitching Costs General

Segment mix

AMETEK, Inc. segments

Full profile >

Electronic Instruments Group (EIG)

Oligopoly

67.1%

Electromechanical Group (EMG)

Competitive

32.9%

GSK plc segments

Full profile >

Vaccines

Oligopoly

29.1%

Specialty Medicines

Oligopoly

37.6%

General Medicines

Competitive

33.2%

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.