VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 1, 2026

Stock Comparison

Costco Wholesale Corporation vs Parker-Hannifin Corporation

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

Costco Wholesale Corporation

COST · Nasdaq Global Select Market

Market cap (USD)$379.8B
SectorConsumer
CountryUS
Data as of2025-12-21
Moat score
80/ 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 Costco Wholesale Corporation's moat claims, evidence, and risks.

View COST analysis

Parker-Hannifin Corporation

PH · New York Stock Exchange

Market cap (USD)$111.4B
SectorIndustrials
CountryUS
Data as of2025-12-31
Moat score
71/ 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 Parker-Hannifin Corporation's moat claims, evidence, and risks.

View PH analysis

Comparison highlights

  • Moat score gap: Costco Wholesale Corporation leads (80 / 100 vs 71 / 100 for Parker-Hannifin Corporation).
  • Segment focus: Costco Wholesale Corporation has 2 segments (98.1% in Warehouse club retail); Parker-Hannifin Corporation has 2 segments (68.8% in Diversified Industrial).
  • Primary market structure: Oligopoly vs Competitive. Pricing power: Weak vs Moderate.
  • Moat breadth: Costco Wholesale Corporation has 6 moat types across 3 domains; Parker-Hannifin Corporation has 5 across 2.

Primary market context

Costco Wholesale Corporation

Warehouse club retail

Market

Membership warehouse club retail (warehouse clubs, ancillary services, and e-commerce)

Geography

Global

Customer

Households and small businesses

Role

Retailer (membership club)

Revenue share

98.1%

Parker-Hannifin Corporation

Diversified Industrial

Market

Motion and control components & systems (industrial and mobile applications)

Geography

Global

Customer

OEMs and industrial distributors/aftermarket channels

Role

Component and system designer/manufacturer with aftermarket support

Revenue share

68.8%

Side-by-side metrics

Costco Wholesale Corporation
Parker-Hannifin Corporation
Ticker / Exchange
COST - Nasdaq Global Select Market
PH - New York Stock Exchange
Market cap (USD)
$379.8B
$111.4B
Sector
Consumer
Industrials
HQ country
US
US
Primary segment
Warehouse club retail
Diversified Industrial
Market structure
Oligopoly
Competitive
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Weak
Moderate
Moat score
80 / 100
71 / 100
Moat domains
Supply, Financial, Demand
Supply, Demand
Last update
2025-12-21
2025-12-31

Moat coverage

Shared moat types

Operational Excellence

Costco Wholesale Corporation strengths

Scale Economies Unit CostNegative Working CapitalBrand TrustHabit DefaultFloat Prepayment

Parker-Hannifin Corporation strengths

Distribution ControlDesign In QualificationScope EconomiesInstalled Base Consumables

Segment mix

Costco Wholesale Corporation segments

Full profile >

Warehouse club retail

Oligopoly

98.1%

Membership fees (subscription)

Oligopoly

1.9%

Parker-Hannifin Corporation segments

Full profile >

Diversified Industrial

Competitive

68.8%

Aerospace Systems

Oligopoly

31.2%

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.