VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Wednesday, December 31, 2025
Stock Comparison
HOYA Corporation vs Berkshire Hathaway Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
HOYA Corporation
7741 · Tokyo Stock Exchange
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 analysisBerkshire Hathaway Inc.
BRK.B · New York Stock Exchange
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Full stock profile
Dive deeper into Berkshire Hathaway Inc.'s moat claims, evidence, and risks.
View BRK.B analysisComparison highlights
- Moat score gap: HOYA Corporation leads (72 / 100 vs 64 / 100 for Berkshire Hathaway Inc.).
- Segment focus: HOYA Corporation has 5 segments (48.2% in Eye Health Domain (healthcare-related products)); Berkshire Hathaway Inc. has 11 segments (28.3% in Insurance (underwriting + investment income)).
- Primary market structure: Oligopoly vs Competitive. Pricing power: Moderate vs n/a.
- Moat breadth: HOYA Corporation has 7 moat types across 3 domains; Berkshire Hathaway Inc. has 17 across 4.
Primary market context
HOYA Corporation
Eye Health Domain (healthcare-related products)
Ophthalmic products (eyeglass lenses, contact lens retail, intraocular lenses)
Global (eyeglass lenses & IOL); Japan (contact lens retail)
Optical retailers, consumers, hospitals/clinics
Manufacturer and retailer
48.2%
Berkshire Hathaway Inc.
Insurance (underwriting + investment income)
Insurance and reinsurance (property and casualty + life/health), including float-funded investing
Global
Consumers and businesses (policyholders) and insurers (reinsurance cedents)
Underwriter and reinsurer plus investment manager of float
28.3%
Side-by-side metrics
Moat coverage
Shared moat types
HOYA Corporation strengths
Berkshire Hathaway Inc. strengths
Segment mix
HOYA Corporation segments
Full profile >Eye Health Domain (healthcare-related products)
Oligopoly
Med-Tech Domain (medical-related products)
Oligopoly
Electronics-related products (semiconductor/display photomask materials, HDD substrates)
Oligopoly
Imaging-related products (optical lenses and optical materials)
Competitive
Other (speech synthesis software)
Competitive
Berkshire Hathaway Inc. segments
Full profile >Insurance (underwriting + investment income)
Competitive
BNSF Railway (freight rail transportation)
Oligopoly
Berkshire Hathaway Energy (regulated utilities, pipelines, renewables)
Monopoly
Industrial products manufacturing (PCC, Lubrizol, IMC, Marmon, etc.)
Oligopoly
Building products & housing (Clayton Homes, Shaw, Johns Manville, Benjamin Moore, etc.)
Competitive
Consumer products manufacturing (Duracell, Forest River, apparel/footwear, toys, etc.)
Competitive
Service businesses (FlightSafety, NetJets, TTI, Dairy Queen, etc.)
Competitive
Retailing businesses (Berkshire Hathaway Automotive, home furnishings, jewelry, See's, etc.)
Competitive
Pilot Travel Centers (travel centers + wholesale fuel marketing)
Oligopoly
McLane (wholesale distribution to convenience stores and restaurants)
Oligopoly
Holding company capital allocation and investing
Competitive
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View the moat stocks listCuration & 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.