VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 2, 2026

Stock Comparison

Airbnb, Inc. vs Martin Marietta Materials, Inc.

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

Airbnb, Inc.

ABNB · NASDAQ

Market cap (USD)$82.2B
Gross margin (TTM)83%
Operating margin (TTM)22.7%
Net margin (TTM)22%
SectorConsumer
IndustryTravel Services
CountryUS
Data as of2025-12-25
Moat score
69/ 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 Airbnb, Inc.'s moat claims, evidence, and risks.

View ABNB analysis

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

Comparison highlights

  • Moat score gap: Martin Marietta Materials, Inc. leads (78 / 100 vs 69 / 100 for Airbnb, Inc.).
  • Segment focus: Airbnb, Inc. has 1 segment (100% in Airbnb Marketplace); Martin Marietta Materials, Inc. has 3 segments (52.4% in East Group).
  • Primary market structure: Competitive vs Oligopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: Airbnb, Inc. has 4 moat types across 3 domains; Martin Marietta Materials, Inc. has 4 across 2.

Primary market context

Airbnb, Inc.

Airbnb Marketplace

Market

Online marketplace for short-term accommodations and experiences

Geography

Global

Customer

Hosts (supply) and guests (demand)

Role

Marketplace / platform operator

Revenue share

100%

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%

Side-by-side metrics

Airbnb, Inc.
Martin Marietta Materials, Inc.
Ticker / Exchange
ABNB - NASDAQ
MLM - NYSE
Market cap (USD)
$82.2B
$37.9B
Gross margin (TTM)
83%
n/a
Operating margin (TTM)
22.7%
n/a
Net margin (TTM)
22%
n/a
Sector
Consumer
Materials
Industry
Travel Services
Construction Materials
HQ country
US
US
Primary segment
Airbnb Marketplace
East Group
Market structure
Competitive
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Strong
Moat score
69 / 100
78 / 100
Moat domains
Network, Demand, Financial
Supply, Financial
Last update
2025-12-25
2026-01-01

Moat coverage

Shared moat types

No overlap yet.

Airbnb, Inc. strengths

Two Sided NetworkReputation ReviewsBrand TrustFloat Prepayment

Martin Marietta Materials, Inc. strengths

Physical Network DensityGeographic NaturalBenchmark Pricing PowerCapex Knowhow Scale

Segment mix

Airbnb, Inc. segments

Full profile >

Airbnb Marketplace

Competitive

100%

Martin Marietta Materials, Inc. segments

Full profile >

East Group

Oligopoly

52.4%

West Group

Oligopoly

40.9%

Specialties (formerly Magnesia Specialties)

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.

View the moat stocks list

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.