VOL. XCIV, NO. 247

* MOAT STOCKS COMPARISON *

NO ADVICE

Friday, December 26, 2025

Stock Comparison

Costco Wholesale Corporation vs MarketAxess Holdings Inc.

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.

View full moat analysis >

MarketAxess Holdings Inc.

MKTX · NASDAQ Global Select Market

Market cap (USD)$6.7B
SectorFinancials
CountryUS
Data as of2025-12-23
Moat score
74/ 100

Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.

View full moat analysis >

Side-by-side metrics

Costco Wholesale Corporation
MarketAxess Holdings Inc.
Ticker / Exchange
COST - Nasdaq Global Select Market
MKTX - NASDAQ Global Select Market
Market cap (USD)
$379.8B
$6.7B
Sector
Consumer
Financials
HQ country
US
US
Primary segment
Warehouse club retail
Trade Execution Solutions
Market structure
Oligopoly
Oligopoly
Market share
n/a
19% (reported)
HHI estimate
n/a
n/a
Pricing power
Weak
Moderate
Moat score
80 / 100
74 / 100
Moat domains
Supply, Financial, Demand
Network, Demand, Legal
Last update
2025-12-21
2025-12-23

Moat coverage

Shared moat types

No overlap yet.

Costco Wholesale Corporation strengths

Scale Economies Unit CostOperational ExcellenceNegative Working CapitalBrand TrustHabit DefaultFloat Prepayment

MarketAxess Holdings Inc. strengths

Two Sided NetworkData Workflow LockinData Network EffectsCompliance AdvantageSwitching Costs GeneralEcosystem Complements

Segment mix

Costco Wholesale Corporation segments

Full profile >

Warehouse club retail

Oligopoly

98.1%

Membership fees (subscription)

Oligopoly

1.9%

MarketAxess Holdings Inc. segments

Full profile >

Trade Execution Solutions

Oligopoly

87.1%

Services (Data, Post-Trade and Technology)

Competitive

12.9%

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.