VOL. XCIV, NO. 247
* WIDE MOAT STOCKS COMPARISON *
NO ADVICE
Monday, December 29, 2025
Stock Comparison
Costco Wholesale Corporation vs Spirax Group plc
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Costco Wholesale Corporation
COST · Nasdaq Global Select Market
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 analysisSpirax Group plc
SPX · London 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 Spirax Group plc's moat claims, evidence, and risks.
View SPX analysisComparison highlights
- Moat score gap: Costco Wholesale Corporation leads (80 / 100 vs 71 / 100 for Spirax Group plc).
- Segment focus: Costco Wholesale Corporation has 2 segments (98.1% in Warehouse club retail); Spirax Group plc has 3 segments (52.1% in Steam Thermal Solutions).
- Primary market structure: Oligopoly vs Oligopoly. Pricing power: Weak vs Moderate.
- Moat breadth: Costco Wholesale Corporation has 6 moat types across 3 domains; Spirax Group plc has 6 across 2.
Primary market context
Costco Wholesale Corporation
Warehouse club retail
Membership warehouse club retail (warehouse clubs, ancillary services, and e-commerce)
Global
Households and small businesses
Retailer (membership club)
98.1%
Spirax Group plc
Steam Thermal Solutions
Industrial and commercial steam systems (condensate management, controls, thermal energy management products and solutions)
Global
Industrial process operators and commercial facility operators
OEM / solutions provider
52.1%
Side-by-side metrics
Moat coverage
Shared moat types
Costco Wholesale Corporation strengths
Spirax Group plc strengths
Segment mix
Costco Wholesale Corporation segments
Full profile >Warehouse club retail
Oligopoly
Membership fees (subscription)
Oligopoly
Spirax Group plc segments
Full profile >Steam Thermal Solutions
Oligopoly
Electric Thermal Solutions
Competitive
Watson-Marlow Fluid Technology Solutions
Oligopoly
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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.