VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 2, 2026

Stock Comparison

Monolithic Power Systems, Inc. vs SBA Communications Corporation

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

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

SBA Communications Corporation

SBAC · NASDAQ

Market cap (USD)
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorReal Estate
IndustryREIT - Specialty
CountryUS
Data as of2026-01-02
Moat score
71/ 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 SBA Communications Corporation's moat claims, evidence, and risks.

View SBAC analysis

Comparison highlights

  • Moat score gap: SBA Communications Corporation leads (71 / 100 vs 67 / 100 for Monolithic Power Systems, Inc.).
  • Segment focus: Monolithic Power Systems, Inc. has 6 segments (32.5% in Enterprise Data); SBA Communications Corporation has 3 segments (69.5% in Domestic Site Leasing).
  • Moat breadth: Monolithic Power Systems, Inc. has 4 moat types across 3 domains; SBA Communications Corporation has 4 across 2.

Primary market context

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%

SBA Communications Corporation

Domestic Site Leasing

Market

U.S. wireless macro tower leasing (multi-tenant co-location on communications towers)

Geography

United States and territories

Customer

Wireless service providers and other wireless network operators/tenants

Role

Independent tower owner/operator (REIT)

Revenue share

69.5%

Side-by-side metrics

Monolithic Power Systems, Inc.
SBA Communications Corporation
Ticker / Exchange
MPWR - NASDAQ Global Select Market
SBAC - NASDAQ
Market cap (USD)
$44.9B
n/a
Gross margin (TTM)
55.2%
n/a
Operating margin (TTM)
26%
n/a
Net margin (TTM)
71.2%
n/a
Sector
Technology
Real Estate
Industry
Semiconductors
REIT - Specialty
HQ country
US
US
Primary segment
Enterprise Data
Domestic Site Leasing
Market structure
Oligopoly
Oligopoly
Market share
n/a
16%-19% (implied)
HHI estimate
n/a
3,710
Pricing power
Moderate
Moderate
Moat score
67 / 100
71 / 100
Moat domains
Demand, Supply, Legal
Supply, Demand
Last update
2025-12-25
2026-01-02

Moat coverage

Shared moat types

Operational Excellence

Monolithic Power Systems, Inc. strengths

Design In QualificationIP Choke PointBrand Trust

SBA Communications Corporation strengths

Physical Network DensityLong Term ContractsScale Economies Unit Cost

Segment mix

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%

SBA Communications Corporation segments

Full profile >

Domestic Site Leasing

Oligopoly

69.5%

International Site Leasing

Oligopoly

24.8%

Site Development

Competitive

5.7%

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.