VOL. XCIV, NO. 247

* MOAT STOCKS COMPARISON *

NO ADVICE

Friday, December 26, 2025

Stock Comparison

IDEX Corporation vs MarketAxess Holdings Inc.

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

IDEX Corporation

IEX · New York Stock Exchange

Market cap (USD)$13.4B
SectorIndustrials
CountryUS
Data as of2025-12-23
Moat score
58/ 100

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

View full moat analysis >

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 >

Side-by-side metrics

IDEX Corporation
MarketAxess Holdings Inc.
Ticker / Exchange
IEX - New York Stock Exchange
MKTX - NASDAQ Global Select Market
Market cap (USD)
$13.4B
$6.7B
Sector
Industrials
Financials
HQ country
US
US
Primary segment
Health & Science Technologies (HST)
Trade Execution Solutions
Market structure
Competitive
Oligopoly
Market share
n/a
19% (reported)
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
58 / 100
74 / 100
Moat domains
Demand, Supply, Legal
Network, Demand, Legal
Last update
2025-12-23
2025-12-23

Moat coverage

Shared moat types

Data Workflow Lockin

IDEX Corporation strengths

Design In QualificationInstalled Base ConsumablesLearning Curve YieldIP Choke PointBrand TrustProcurement Inertia

MarketAxess Holdings Inc. strengths

Two Sided NetworkData Network EffectsCompliance AdvantageSwitching Costs GeneralEcosystem Complements

Segment mix

IDEX Corporation segments

Full profile >

Fluid & Metering Technologies (FMT)

Competitive

37.7%

Health & Science Technologies (HST)

Competitive

39.6%

Fire & Safety/Diversified Products (FSDP)

Competitive

22.7%

MarketAxess Holdings Inc. segments

Full profile >

Trade Execution Solutions

Oligopoly

87.1%

Services (Data, Post-Trade and Technology)

Competitive

12.9%

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.