VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Monday, January 5, 2026

Stock Comparison

Legrand S.A. vs Monolithic Power Systems, Inc.

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

Legrand S.A.

LR · Euronext Paris

Market cap (USD)
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorIndustrials
Industry
CountryFR
Data as of2026-01-02
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 Legrand S.A.'s moat claims, evidence, and risks.

View LR analysis

Monolithic Power Systems, Inc.

MPWR · NASDAQ Global Select Market

Market cap (USD)$44.9B
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: Legrand S.A. leads (68 / 100 vs 67 / 100 for Monolithic Power Systems, Inc.).
  • Segment focus: Legrand S.A. has 2 segments (80% in Building electrical & digital infrastructure (non-datacenter)); Monolithic Power Systems, Inc. has 6 segments (32.5% in Enterprise Data).
  • Moat breadth: Legrand S.A. has 4 moat types across 3 domains; Monolithic Power Systems, Inc. has 4 across 3.

Primary market context

Legrand S.A.

Building electrical & digital infrastructure (non-datacenter)

Market

Low-voltage electrical and digital building infrastructure (wiring devices, energy distribution, cable management, building controls)

Geography

Global (strong Europe & North America footprint)

Customer

Professional installers/electricians, electrical wholesalers, OEM/contractors; end-users in residential & commercial buildings

Role

Manufacturer + brand owner; channel-driven distribution

Revenue share

80%

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

Legrand S.A.
Monolithic Power Systems, Inc.
Ticker / Exchange
LR - Euronext Paris
MPWR - NASDAQ Global Select Market
Market cap (USD)
n/a
$44.9B
Gross margin (TTM)
n/a
55.2%
Operating margin (TTM)
n/a
26%
Net margin (TTM)
n/a
71.2%
Sector
Industrials
Technology
Industry
n/a
Semiconductors
HQ country
FR
US
Primary segment
Building electrical & digital infrastructure (non-datacenter)
Enterprise Data
Market structure
Oligopoly
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
Legal, Supply, Demand
Demand, Supply, Legal
Last update
2026-01-02
2025-12-25

Moat coverage

Shared moat types

Brand TrustDesign In Qualification

Legrand S.A. strengths

Compliance AdvantageScope Economies

Monolithic Power Systems, Inc. strengths

Operational ExcellenceIP Choke Point

Segment mix

Legrand S.A. segments

Full profile >

Building electrical & digital infrastructure (non-datacenter)

Oligopoly

80%

Datacenter infrastructure

Oligopoly

20%

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?

Browse the full ranking of wide moat stocks, updated with moat scores and segment context.

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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.