VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 2, 2026

Stock Comparison

HOYA Corporation vs Vulcan Materials Company

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

HOYA Corporation

7741 · Tokyo Stock Exchange

Market cap (USD)$8.1T
Gross margin (TTM)80.1%
Operating margin (TTM)29.5%
Net margin (TTM)23.5%
SectorHealthcare
IndustryMedical - Instruments & Supplies
CountryJP
Data as of2025-12-28
Moat score
72/ 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 HOYA Corporation's moat claims, evidence, and risks.

View 7741 analysis

Vulcan Materials Company

VMC · New York Stock Exchange

Market cap (USD)$38.3B
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorMaterials
IndustryConstruction Materials
CountryUS
Data as of2026-01-01
Moat score
73/ 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 Vulcan Materials Company's moat claims, evidence, and risks.

View VMC analysis

Comparison highlights

  • Moat score gap: Vulcan Materials Company leads (73 / 100 vs 72 / 100 for HOYA Corporation).
  • Segment focus: HOYA Corporation has 5 segments (48.2% in Eye Health Domain (healthcare-related products)); Vulcan Materials Company has 3 segments (74.4% in Aggregates).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: HOYA Corporation has 7 moat types across 3 domains; Vulcan Materials Company has 5 across 2.

Primary market context

HOYA Corporation

Eye Health Domain (healthcare-related products)

Market

Ophthalmic products (eyeglass lenses, contact lens retail, intraocular lenses)

Geography

Global (eyeglass lenses & IOL); Japan (contact lens retail)

Customer

Optical retailers, consumers, hospitals/clinics

Role

Manufacturer and retailer

Revenue share

48.2%

Vulcan Materials Company

Aggregates

Market

Construction aggregates (crushed stone, sand & gravel)

Geography

United States (local/regional markets)

Customer

Construction contractors and public infrastructure agencies

Role

Upstream raw materials producer

Revenue share

74.4%

Side-by-side metrics

HOYA Corporation
Vulcan Materials Company
Ticker / Exchange
7741 - Tokyo Stock Exchange
VMC - New York Stock Exchange
Market cap (USD)
$8.1T
$38.3B
Gross margin (TTM)
80.1%
n/a
Operating margin (TTM)
29.5%
n/a
Net margin (TTM)
23.5%
n/a
Sector
Healthcare
Materials
Industry
Medical - Instruments & Supplies
Construction Materials
HQ country
JP
US
Primary segment
Eye Health Domain (healthcare-related products)
Aggregates
Market structure
Oligopoly
Oligopoly
Market share
n/a
8%-11% (implied)
HHI estimate
n/a
n/a
Pricing power
Moderate
Strong
Moat score
72 / 100
73 / 100
Moat domains
Demand, Supply, Legal
Legal, Supply
Last update
2025-12-28
2026-01-01

Moat coverage

Shared moat types

Physical Network Density

HOYA Corporation strengths

Brand TrustCompliance AdvantageReputation ReviewsDesign In QualificationLearning Curve YieldNiche speech synthesis portfolio

Vulcan Materials Company strengths

Permits Rights Of WayGeographic NaturalScale Economies Unit CostSupply Chain Control

Segment mix

HOYA Corporation segments

Full profile >

Eye Health Domain (healthcare-related products)

Oligopoly

48.2%

Med-Tech Domain (medical-related products)

Oligopoly

15.4%

Electronics-related products (semiconductor/display photomask materials, HDD substrates)

Oligopoly

30.6%

Imaging-related products (optical lenses and optical materials)

Competitive

5.3%

Other (speech synthesis software)

Competitive

0.5%

Vulcan Materials Company segments

Full profile >

Aggregates

Oligopoly

74.4%

Asphalt

Competitive

16.8%

Concrete

Competitive

8.8%

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.