VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

BlackRock, Inc. vs MarketAxess Holdings Inc.

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

BlackRock, Inc.

BLK · New York Stock Exchange

Market cap (USD)$168.1B
SectorFinancials
CountryUS
Data as of2025-12-31
Moat score
59/ 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 BlackRock, Inc.'s moat claims, evidence, and risks.

View BLK 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.

Full stock profile

Dive deeper into MarketAxess Holdings Inc.'s moat claims, evidence, and risks.

View MKTX analysis

Comparison highlights

  • Moat score gap: MarketAxess Holdings Inc. leads (74 / 100 vs 59 / 100 for BlackRock, Inc.).
  • Segment focus: BlackRock, Inc. has 7 segments (33% in iShares ETFs & ETPs); MarketAxess Holdings Inc. has 2 segments (87.1% in Trade Execution Solutions).
  • Moat breadth: BlackRock, Inc. has 10 moat types across 2 domains; MarketAxess Holdings Inc. has 6 across 3.

Primary market context

BlackRock, Inc.

iShares ETFs & ETPs

Market

Exchange-traded funds (ETFs) and exchange-traded products (ETPs)

Geography

Global

Customer

Institutional and retail (via intermediaries)

Role

ETF sponsor / asset manager

Revenue share

33%

MarketAxess Holdings Inc.

Trade Execution Solutions

Market

Electronic fixed-income trade execution platforms (credit and rates)

Geography

Global

Customer

Institutional investors, broker-dealers, and alternative liquidity providers

Role

Electronic trading venue / marketplace operator

Revenue share

87.1%

Side-by-side metrics

BlackRock, Inc.
MarketAxess Holdings Inc.
Ticker / Exchange
BLK - New York Stock Exchange
MKTX - NASDAQ Global Select Market
Market cap (USD)
$168.1B
$6.7B
Sector
Financials
Financials
HQ country
US
US
Primary segment
iShares ETFs & ETPs
Trade Execution Solutions
Market structure
Oligopoly
Oligopoly
Market share
28.3% (reported)
19% (reported)
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
59 / 100
74 / 100
Moat domains
Supply, Demand
Network, Demand, Legal
Last update
2025-12-31
2025-12-23

Moat coverage

Shared moat types

Switching Costs GeneralData Workflow Lockin

BlackRock, Inc. strengths

Scale Economies Unit CostBrand TrustDistribution ControlOperational ExcellenceSuite BundlingProcurement InertiaLong Term ContractsScope Economies

MarketAxess Holdings Inc. strengths

Two Sided NetworkData Network EffectsCompliance AdvantageEcosystem Complements

Segment mix

BlackRock, Inc. segments

Full profile >

iShares ETFs & ETPs

Oligopoly

33%

Institutional Index Mandates (Non-ETF)

Oligopoly

5.7%

Active & Multi-Asset (Public Markets)

Competitive

27.5%

Alternatives & Private Markets

Oligopoly

13.5%

Cash Management (MMFs & cash solutions)

Competitive

5.1%

Aladdin & Technology Services

Oligopoly

7.9%

Distribution & Advisory Services

Competitive

7.3%

MarketAxess Holdings Inc. segments

Full profile >

Trade Execution Solutions

Oligopoly

87.1%

Services (Data, Post-Trade and Technology)

Competitive

12.9%

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.