VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

American Express Company vs BlackRock, Inc.

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

American Express Company

AXP · New York Stock Exchange

Market cap (USD)
SectorFinancials
CountryUS
Data as of2025-12-30
Moat score
52/ 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 American Express Company's moat claims, evidence, and risks.

View AXP analysis

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

Comparison highlights

  • Moat score gap: BlackRock, Inc. leads (59 / 100 vs 52 / 100 for American Express Company).
  • Segment focus: American Express Company has 4 segments (47.5% in U.S. Consumer Services (USCS)); BlackRock, Inc. has 7 segments (33% in iShares ETFs & ETPs).
  • Primary market structure: Competitive vs Oligopoly. Pricing power: n/a vs Moderate.
  • Moat breadth: American Express Company has 8 moat types across 3 domains; BlackRock, Inc. has 10 across 2.

Primary market context

American Express Company

U.S. Consumer Services (USCS)

Market

U.S. premium consumer card issuing (charge and credit) and attached consumer banking and financing

Geography

United States

Customer

Consumers

Role

Issuer (proprietary cards) and consumer lender/services

Revenue share

47.5%

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%

Side-by-side metrics

American Express Company
BlackRock, Inc.
Ticker / Exchange
AXP - New York Stock Exchange
BLK - New York Stock Exchange
Market cap (USD)
n/a
$168.1B
Sector
Financials
Financials
HQ country
US
US
Primary segment
U.S. Consumer Services (USCS)
iShares ETFs & ETPs
Market structure
Competitive
Oligopoly
Market share
n/a
28.3% (reported)
HHI estimate
n/a
n/a
Pricing power
n/a
Moderate
Moat score
52 / 100
59 / 100
Moat domains
Demand, Financial, Network
Supply, Demand
Last update
2025-12-30
2025-12-31

Moat coverage

Shared moat types

Brand TrustSwitching Costs GeneralLong Term Contracts

American Express Company strengths

Cost Of Capital AdvantageTraining Org Change CostsEcosystem ComplementsTwo Sided NetworkData Network Effects

BlackRock, Inc. strengths

Scale Economies Unit CostDistribution ControlOperational ExcellenceSuite BundlingProcurement InertiaScope EconomiesData Workflow Lockin

Segment mix

American Express Company segments

Full profile >

U.S. Consumer Services (USCS)

Competitive

47.5%

Commercial Services (CS)

Competitive

23.9%

International Card Services (ICS)

Competitive

17.3%

Global Merchant and Network Services (GMNS)

Oligopoly

11.3%

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%

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.