VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 2, 2026

Stock Comparison

MarketAxess Holdings Inc. vs Martin Marietta Materials, Inc.

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

MarketAxess Holdings Inc.

MKTX · NASDAQ Global Select Market

Market cap (USD)$6.7B
Gross margin (TTM)66.2%
Operating margin (TTM)41.2%
Net margin (TTM)26.2%
SectorFinancials
IndustryFinancial - Capital Markets
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

Martin Marietta Materials, Inc.

MLM · NYSE

Market cap (USD)$37.9B
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorMaterials
IndustryConstruction Materials
CountryUS
Data as of2026-01-01
Moat score
78/ 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 Martin Marietta Materials, Inc.'s moat claims, evidence, and risks.

View MLM analysis

Comparison highlights

  • Moat score gap: Martin Marietta Materials, Inc. leads (78 / 100 vs 74 / 100 for MarketAxess Holdings Inc.).
  • Segment focus: MarketAxess Holdings Inc. has 2 segments (87.1% in Trade Execution Solutions); Martin Marietta Materials, Inc. has 3 segments (52.4% in East Group).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: MarketAxess Holdings Inc. has 6 moat types across 3 domains; Martin Marietta Materials, Inc. has 4 across 2.

Primary market context

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%

Martin Marietta Materials, Inc.

East Group

Market

Construction aggregates and asphalt products (crushed stone, sand & gravel; asphalt) in local/regional markets

Geography

United States (East/Southeast and adjacent regions)

Customer

Infrastructure agencies, construction contractors, and downstream materials producers (asphalt/ready-mix)

Role

Quarry/mining operator and building materials producer/distributor

Revenue share

52.4%

Side-by-side metrics

MarketAxess Holdings Inc.
Martin Marietta Materials, Inc.
Ticker / Exchange
MKTX - NASDAQ Global Select Market
MLM - NYSE
Market cap (USD)
$6.7B
$37.9B
Gross margin (TTM)
66.2%
n/a
Operating margin (TTM)
41.2%
n/a
Net margin (TTM)
26.2%
n/a
Sector
Financials
Materials
Industry
Financial - Capital Markets
Construction Materials
HQ country
US
US
Primary segment
Trade Execution Solutions
East Group
Market structure
Oligopoly
Oligopoly
Market share
19% (reported)
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Strong
Moat score
74 / 100
78 / 100
Moat domains
Network, Demand, Legal
Supply, Financial
Last update
2025-12-23
2026-01-01

Moat coverage

Shared moat types

No overlap yet.

MarketAxess Holdings Inc. strengths

Two Sided NetworkData Workflow LockinData Network EffectsCompliance AdvantageSwitching Costs GeneralEcosystem Complements

Martin Marietta Materials, Inc. strengths

Physical Network DensityGeographic NaturalBenchmark Pricing PowerCapex Knowhow Scale

Segment mix

MarketAxess Holdings Inc. segments

Full profile >

Trade Execution Solutions

Oligopoly

87.1%

Services (Data, Post-Trade and Technology)

Competitive

12.9%

Martin Marietta Materials, Inc. segments

Full profile >

East Group

Oligopoly

52.4%

West Group

Oligopoly

40.9%

Specialties (formerly Magnesia Specialties)

Oligopoly

6.7%

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.