VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 2, 2026

Stock Comparison

Martin Marietta Materials, Inc. vs SBA Communications Corporation

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

Martin Marietta Materials, Inc.

MLM · NYSE

Market cap (USD)$37.9B
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorMaterials
IndustryConstruction Materials
CountryUS
Data as of2026-01-01
Moat score
78/ 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 Martin Marietta Materials, Inc.'s moat claims, evidence, and risks.

View MLM 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: Martin Marietta Materials, Inc. leads (78 / 100 vs 71 / 100 for SBA Communications Corporation).
  • Segment focus: Martin Marietta Materials, Inc. has 3 segments (52.4% in East Group); SBA Communications Corporation has 3 segments (69.5% in Domestic Site Leasing).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Strong vs Moderate.
  • Moat breadth: Martin Marietta Materials, Inc. has 4 moat types across 2 domains; SBA Communications Corporation has 4 across 2.

Primary market context

Martin Marietta Materials, Inc.

East Group

Market

Construction aggregates and asphalt products (crushed stone, sand & gravel; asphalt) in local/regional markets

Geography

United States (East/Southeast and adjacent regions)

Customer

Infrastructure agencies, construction contractors, and downstream materials producers (asphalt/ready-mix)

Role

Quarry/mining operator and building materials producer/distributor

Revenue share

52.4%

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

Martin Marietta Materials, Inc.
SBA Communications Corporation
Ticker / Exchange
MLM - NYSE
SBAC - NASDAQ
Market cap (USD)
$37.9B
n/a
Gross margin (TTM)
n/a
n/a
Operating margin (TTM)
n/a
n/a
Net margin (TTM)
n/a
n/a
Sector
Materials
Real Estate
Industry
Construction Materials
REIT - Specialty
HQ country
US
US
Primary segment
East Group
Domestic Site Leasing
Market structure
Oligopoly
Oligopoly
Market share
n/a
16%-19% (implied)
HHI estimate
n/a
3,710
Pricing power
Strong
Moderate
Moat score
78 / 100
71 / 100
Moat domains
Supply, Financial
Supply, Demand
Last update
2026-01-01
2026-01-02

Moat coverage

Shared moat types

Physical Network Density

Martin Marietta Materials, Inc. strengths

Geographic NaturalBenchmark Pricing PowerCapex Knowhow Scale

SBA Communications Corporation strengths

Long Term ContractsScale Economies Unit CostOperational Excellence

Segment mix

Martin Marietta Materials, Inc. segments

Full profile >

East Group

Oligopoly

52.4%

West Group

Oligopoly

40.9%

Specialties (formerly Magnesia Specialties)

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.