VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 2, 2026

Stock Comparison

Martin Marietta Materials, Inc. vs Siemens Healthineers AG

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

Martin Marietta Materials, Inc.

MLM · NYSE

Market cap (USD)$37.9B
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorMaterials
IndustryConstruction Materials
CountryUS
Data as of2026-01-01
Moat score
78/ 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 Martin Marietta Materials, Inc.'s moat claims, evidence, and risks.

View MLM analysis

Siemens Healthineers AG

SHL · XETRA

Market cap (USD)$49.6B
Gross margin (TTM)38.6%
Operating margin (TTM)14.7%
Net margin (TTM)9.2%
SectorHealthcare
IndustryMedical - Devices
CountryDE
Data as of2025-12-28
Moat score
68/ 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 Siemens Healthineers AG's moat claims, evidence, and risks.

View SHL analysis

Comparison highlights

  • Moat score gap: Martin Marietta Materials, Inc. leads (78 / 100 vs 68 / 100 for Siemens Healthineers AG).
  • Segment focus: Martin Marietta Materials, Inc. has 3 segments (52.4% in East Group); Siemens Healthineers AG has 4 segments (54.6% in Imaging).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Strong vs Moderate.
  • Moat breadth: Martin Marietta Materials, Inc. has 4 moat types across 2 domains; Siemens Healthineers AG has 8 across 3.

Primary market context

Martin Marietta Materials, Inc.

East Group

Market

Construction aggregates and asphalt products (crushed stone, sand & gravel; asphalt) in local/regional markets

Geography

United States (East/Southeast and adjacent regions)

Customer

Infrastructure agencies, construction contractors, and downstream materials producers (asphalt/ready-mix)

Role

Quarry/mining operator and building materials producer/distributor

Revenue share

52.4%

Siemens Healthineers AG

Imaging

Market

Diagnostic medical imaging equipment and related software/services (MRI, CT, X-ray, molecular imaging, ultrasound)

Geography

Global

Customer

Hospitals, imaging centers, clinics, and integrated delivery networks

Role

OEM + digital platform and service provider

Revenue share

54.6%

Side-by-side metrics

Martin Marietta Materials, Inc.
Siemens Healthineers AG
Ticker / Exchange
MLM - NYSE
SHL - XETRA
Market cap (USD)
$37.9B
$49.6B
Gross margin (TTM)
n/a
38.6%
Operating margin (TTM)
n/a
14.7%
Net margin (TTM)
n/a
9.2%
Sector
Materials
Healthcare
Industry
Construction Materials
Medical - Devices
HQ country
US
DE
Primary segment
East Group
Imaging
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Strong
Moderate
Moat score
78 / 100
68 / 100
Moat domains
Supply, Financial
Supply, Demand, Network
Last update
2026-01-01
2025-12-28

Moat coverage

Shared moat types

Capex Knowhow Scale

Martin Marietta Materials, Inc. strengths

Physical Network DensityGeographic NaturalBenchmark Pricing Power

Siemens Healthineers AG strengths

Service Field NetworkData Workflow LockinLong Term ContractsInstalled Base ConsumablesDesign In QualificationEcosystem ComplementsSwitching Costs General

Segment mix

Martin Marietta Materials, Inc. segments

Full profile >

East Group

Oligopoly

52.4%

West Group

Oligopoly

40.9%

Specialties (formerly Magnesia Specialties)

Oligopoly

6.7%

Siemens Healthineers AG segments

Full profile >

Imaging

Oligopoly

54.6%

Diagnostics

Oligopoly

18.7%

Varian

Oligopoly

17.6%

Advanced Therapies

Oligopoly

9.1%

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.