VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 2, 2026

Stock Comparison

SBA Communications Corporation vs Walmart Inc.

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

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

Walmart Inc.

WMT · New York Stock Exchange

Market cap (USD)$892.1B
Gross margin (TTM)24.9%
Operating margin (TTM)4.1%
Net margin (TTM)3.3%
SectorConsumer
IndustryDiscount Stores
CountryUS
Data as of2025-12-30
Moat score
77/ 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 Walmart Inc.'s moat claims, evidence, and risks.

View WMT analysis

Comparison highlights

  • Moat score gap: Walmart Inc. leads (77 / 100 vs 71 / 100 for SBA Communications Corporation).
  • Segment focus: SBA Communications Corporation has 3 segments (69.5% in Domestic Site Leasing); Walmart Inc. has 3 segments (68.3% in Walmart U.S.).
  • Primary market structure: Oligopoly vs Competitive. Pricing power: Moderate vs Weak.
  • Moat breadth: SBA Communications Corporation has 4 moat types across 2 domains; Walmart Inc. has 6 across 4.

Primary market context

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%

Walmart Inc.

Walmart U.S.

Market

U.S. omnichannel discount retail and grocery (supercenters, neighborhood markets, eCommerce)

Geography

United States

Customer

Consumers and small businesses; marketplace sellers and advertisers (for marketplace and retail media offerings)

Role

Retailer / marketplace operator / last-mile fulfillment network

Revenue share

68.3%

Side-by-side metrics

SBA Communications Corporation
Walmart Inc.
Ticker / Exchange
SBAC - NASDAQ
WMT - New York Stock Exchange
Market cap (USD)
n/a
$892.1B
Gross margin (TTM)
n/a
24.9%
Operating margin (TTM)
n/a
4.1%
Net margin (TTM)
n/a
3.3%
Sector
Real Estate
Consumer
Industry
REIT - Specialty
Discount Stores
HQ country
US
US
Primary segment
Domestic Site Leasing
Walmart U.S.
Market structure
Oligopoly
Competitive
Market share
16%-19% (implied)
20%-22% (reported)
HHI estimate
3,710
n/a
Pricing power
Moderate
Weak
Moat score
71 / 100
77 / 100
Moat domains
Supply, Demand
Supply, Demand, Network, Financial
Last update
2026-01-02
2025-12-30

Moat coverage

Shared moat types

Physical Network DensityScale Economies Unit Cost

SBA Communications Corporation strengths

Long Term ContractsOperational Excellence

Walmart Inc. strengths

Habit DefaultSupply Chain ControlEcosystem ComplementsFloat Prepayment

Segment mix

SBA Communications Corporation segments

Full profile >

Domestic Site Leasing

Oligopoly

69.5%

International Site Leasing

Oligopoly

24.8%

Site Development

Competitive

5.7%

Walmart Inc. segments

Full profile >

Walmart U.S.

Competitive

68.3%

Walmart International

Competitive

18.1%

Sam's Club U.S.

Oligopoly

13.6%

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.