VOL. XCIV, NO. 247

* MOAT STOCKS COMPARISON *

NO ADVICE

Friday, December 26, 2025

Stock Comparison

MarketAxess Holdings Inc. vs Monolithic Power Systems, 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
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.

View full moat analysis >

Monolithic Power Systems, Inc.

MPWR · NASDAQ Global Select Market

Market cap (USD)$44.1B
SectorTechnology
CountryUS
Data as of2025-12-25
Moat score
67/ 100

Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.

View full moat analysis >

Side-by-side metrics

MarketAxess Holdings Inc.
Monolithic Power Systems, Inc.
Ticker / Exchange
MKTX - NASDAQ Global Select Market
MPWR - NASDAQ Global Select Market
Market cap (USD)
$6.7B
$44.1B
Sector
Financials
Technology
HQ country
US
US
Primary segment
Trade Execution Solutions
Enterprise Data
Market structure
Oligopoly
Oligopoly
Market share
19% (reported)
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
74 / 100
67 / 100
Moat domains
Network, Demand, Legal
Demand, Supply, Legal
Last update
2025-12-23
2025-12-25

Moat coverage

Shared moat types

No overlap yet.

MarketAxess Holdings Inc. strengths

Two Sided NetworkData Workflow LockinData Network EffectsCompliance AdvantageSwitching Costs GeneralEcosystem Complements

Monolithic Power Systems, Inc. strengths

Design In QualificationOperational ExcellenceIP Choke PointBrand Trust

Segment mix

MarketAxess Holdings Inc. segments

Full profile >

Trade Execution Solutions

Oligopoly

87.1%

Services (Data, Post-Trade and Technology)

Competitive

12.9%

Monolithic Power Systems, Inc. segments

Full profile >

Enterprise Data

Oligopoly

32.5%

Storage and Computing

Competitive

22.7%

Automotive

Oligopoly

18.8%

Communications

Oligopoly

10.2%

Consumer

Competitive

9.1%

Industrial

Oligopoly

6.7%

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.