VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 8, 2026

Stock Comparison

Interactive Brokers Group, Inc. vs Melrose Industries PLC

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

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

Melrose Industries PLC

MRO · London Stock Exchange

Market cap (USD)$7.9B
Gross margin (TTM)21.4%
Operating margin (TTM)7.6%
Net margin (TTM)4%
SectorIndustrials
IndustryIndustrial - Machinery
CountryGB
Data as of2025-12-28
Moat score
77/ 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 Melrose Industries PLC's moat claims, evidence, and risks.

View MRO analysis

Comparison highlights

  • Moat score gap: Melrose Industries PLC leads (77 / 100 vs 60 / 100 for Interactive Brokers Group, Inc.).
  • Segment focus: Interactive Brokers Group, Inc. has 1 segment (100% in Electronic brokerage); Melrose Industries PLC has 2 segments (57.9% in Structures).
  • Primary market structure: Competitive vs Oligopoly. Pricing power: Weak vs Moderate.
  • Moat breadth: Interactive Brokers Group, Inc. has 4 moat types across 4 domains; Melrose Industries PLC has 5 across 2.

Primary market context

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%

Melrose Industries PLC

Structures

Market

Aerostructures and aircraft electrical wiring systems (EWIS)

Geography

Global

Customer

Airframe OEMs; defence primes

Role

Tier-1 aerospace supplier

Revenue share

57.9%

Side-by-side metrics

Interactive Brokers Group, Inc.
Melrose Industries PLC
Ticker / Exchange
IBKR - NASDAQ
MRO - London Stock Exchange
Market cap (USD)
$123.6B
$7.9B
Gross margin (TTM)
89%
21.4%
Operating margin (TTM)
82.7%
7.6%
Net margin (TTM)
9.2%
4%
Sector
Financials
Industrials
Industry
Investment - Banking & Investment Services
Industrial - Machinery
HQ country
US
GB
Primary segment
Electronic brokerage
Structures
Market structure
Competitive
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Weak
Moderate
Moat score
60 / 100
77 / 100
Moat domains
Supply, Network, Legal, Demand
Demand, Supply
Last update
2026-01-06
2025-12-28

Moat coverage

Shared moat types

No overlap yet.

Interactive Brokers Group, Inc. strengths

Operational ExcellenceInteroperability HubCompliance AdvantageData Workflow Lockin

Melrose Industries PLC strengths

Long Term ContractsDesign In QualificationCapex Knowhow ScaleService Field NetworkCapacity Moat

Segment mix

Interactive Brokers Group, Inc. segments

Full profile >

Electronic brokerage

Competitive

100%

Melrose Industries PLC segments

Full profile >

Engines

Oligopoly

42.1%

Structures

Oligopoly

57.9%

Want the full wide moat stocks list?

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Proven models entering the expansion stage with unit economics that work.

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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.