VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, January 7, 2026

Stock Comparison

BlackRock, Inc. vs Interactive Brokers Group, 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)$173.5B
Gross margin (TTM)51.6%
Operating margin (TTM)32.6%
Net margin (TTM)26.6%
SectorFinancials
IndustryAsset Management
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

Interactive Brokers Group, Inc.

IBKR · NASDAQ

Market cap (USD)$123.6B
Gross margin (TTM)89%
Operating margin (TTM)82.7%
Net margin (TTM)9.2%
SectorFinancials
IndustryInvestment - Banking & Investment Services
CountryUS
Data as of2026-01-06
Moat score
60/ 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 Interactive Brokers Group, Inc.'s moat claims, evidence, and risks.

View IBKR analysis

Comparison highlights

  • Moat score gap: Interactive Brokers Group, Inc. leads (60 / 100 vs 59 / 100 for BlackRock, Inc.).
  • Segment focus: BlackRock, Inc. has 7 segments (33% in iShares ETFs & ETPs); Interactive Brokers Group, Inc. has 1 segment (100% in Electronic brokerage).
  • Primary market structure: Oligopoly vs Competitive. Pricing power: Moderate vs Weak.
  • Moat breadth: BlackRock, Inc. has 10 moat types across 2 domains; Interactive Brokers Group, Inc. has 4 across 4.

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%

Interactive Brokers Group, Inc.

Electronic brokerage

Market

Multi-asset electronic brokerage, clearing, custody, and financing (self-directed and institutional)

Geography

Global

Customer

Individual investors and institutional clients (e.g., hedge funds, advisors, proprietary trading firms, introducing brokers)

Role

Broker-dealer / clearing broker / platform operator

Revenue share

100%

Side-by-side metrics

BlackRock, Inc.
Interactive Brokers Group, Inc.
Ticker / Exchange
BLK - New York Stock Exchange
IBKR - NASDAQ
Market cap (USD)
$173.5B
$123.6B
Gross margin (TTM)
51.6%
89%
Operating margin (TTM)
32.6%
82.7%
Net margin (TTM)
26.6%
9.2%
Sector
Financials
Financials
Industry
Asset Management
Investment - Banking & Investment Services
HQ country
US
US
Primary segment
iShares ETFs & ETPs
Electronic brokerage
Market structure
Oligopoly
Competitive
Market share
28.3% (reported)
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Weak
Moat score
59 / 100
60 / 100
Moat domains
Supply, Demand
Supply, Network, Legal, Demand
Last update
2025-12-31
2026-01-06

Moat coverage

Shared moat types

Operational ExcellenceData Workflow Lockin

BlackRock, Inc. strengths

Scale Economies Unit CostBrand TrustDistribution ControlSwitching Costs GeneralSuite BundlingProcurement InertiaLong Term ContractsScope Economies

Interactive Brokers Group, Inc. strengths

Interoperability HubCompliance Advantage

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%

Interactive Brokers Group, Inc. segments

Full profile >

Electronic brokerage

Competitive

100%

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.