VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, January 7, 2026

Stock Comparison

Chubb Limited vs Monolithic Power Systems, Inc.

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

Chubb Limited

CB · New York Stock Exchange

Market cap (USD)$126.1B
Gross margin (TTM)28.5%
Operating margin (TTM)21.1%
Net margin (TTM)16.5%
SectorFinancials
IndustryInsurance - Property & Casualty
CountryCH
Data as of2026-01-04
Moat score
68/ 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 Chubb Limited's moat claims, evidence, and risks.

View CB analysis

Monolithic Power Systems, Inc.

MPWR · NASDAQ Global Select Market

Market cap (USD)$45.8B
Gross margin (TTM)55.2%
Operating margin (TTM)26%
Net margin (TTM)71.2%
SectorTechnology
IndustrySemiconductors
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.

Full stock profile

Dive deeper into Monolithic Power Systems, Inc.'s moat claims, evidence, and risks.

View MPWR analysis

Comparison highlights

  • Moat score gap: Chubb Limited leads (68 / 100 vs 67 / 100 for Monolithic Power Systems, Inc.).
  • Segment focus: Chubb Limited has 6 segments (40% in North America Commercial P&C Insurance); Monolithic Power Systems, Inc. has 6 segments (32.5% in Enterprise Data).
  • Primary market structure: Competitive vs Oligopoly. Pricing power: Moderate vs Moderate.
  • Moat breadth: Chubb Limited has 6 moat types across 4 domains; Monolithic Power Systems, Inc. has 4 across 3.

Primary market context

Chubb Limited

North America Commercial P&C Insurance

Market

Commercial property & casualty and corporate accident & health insurance

Geography

North America

Customer

Businesses and institutions (middle market to large corporates); specialty commercial

Role

Primary insurer / underwriter

Revenue share

40%

Monolithic Power Systems, Inc.

Enterprise Data

Market

Power management ICs and power modules for enterprise/data center servers (CPU/GPU/AI accelerators) and cloud/on-prem compute platforms

Geography

Global

Customer

OEMs/ODMs and cloud platform designers

Role

Fabless component supplier (power semiconductors)

Revenue share

32.5%

Side-by-side metrics

Chubb Limited
Monolithic Power Systems, Inc.
Ticker / Exchange
CB - New York Stock Exchange
MPWR - NASDAQ Global Select Market
Market cap (USD)
$126.1B
$45.8B
Gross margin (TTM)
28.5%
55.2%
Operating margin (TTM)
21.1%
26%
Net margin (TTM)
16.5%
71.2%
Sector
Financials
Technology
Industry
Insurance - Property & Casualty
Semiconductors
HQ country
CH
US
Primary segment
North America Commercial P&C Insurance
Enterprise Data
Market structure
Competitive
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
68 / 100
67 / 100
Moat domains
Supply, Demand, Legal, Financial
Demand, Supply, Legal
Last update
2026-01-04
2025-12-25

Moat coverage

Shared moat types

Operational ExcellenceBrand Trust

Chubb Limited strengths

Distribution ControlCompliance AdvantageCost Of Capital AdvantageInstalled Base Consumables

Monolithic Power Systems, Inc. strengths

Design In QualificationIP Choke Point

Segment mix

Chubb Limited segments

Full profile >

North America Commercial P&C Insurance

Competitive

40%

North America Personal P&C Insurance

Oligopoly

12%

North America Agricultural Insurance

Oligopoly

5%

Overseas General Insurance

Competitive

27%

Global Reinsurance

Oligopoly

3%

Life Insurance

Competitive

13%

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%

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.