VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

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Friday, January 2, 2026

Stock Comparison

Marsh & McLennan Companies, Inc. vs Vulcan Materials Company

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

Marsh & McLennan Companies, Inc.

MMC · New York Stock Exchange

Market cap (USD)$90.4B
Gross margin (TTM)42.3%
Operating margin (TTM)23.2%
Net margin (TTM)15.6%
SectorFinancials
IndustryInsurance - Brokers
CountryUS
Data as of2025-12-31
Moat score
65/ 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 Marsh & McLennan Companies, Inc.'s moat claims, evidence, and risks.

View MMC analysis

Vulcan Materials Company

VMC · New York Stock Exchange

Market cap (USD)$38.3B
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorMaterials
IndustryConstruction Materials
CountryUS
Data as of2026-01-01
Moat score
73/ 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 Vulcan Materials Company's moat claims, evidence, and risks.

View VMC analysis

Comparison highlights

  • Moat score gap: Vulcan Materials Company leads (73 / 100 vs 65 / 100 for Marsh & McLennan Companies, Inc.).
  • Segment focus: Marsh & McLennan Companies, Inc. has 2 segments (62.8% in Risk and Insurance Services); Vulcan Materials Company has 3 segments (74.4% in Aggregates).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: Marsh & McLennan Companies, Inc. has 5 moat types across 3 domains; Vulcan Materials Company has 5 across 2.

Primary market context

Marsh & McLennan Companies, Inc.

Risk and Insurance Services

Market

Insurance brokerage, risk advisory, and reinsurance brokerage/services

Geography

Global

Customer

Enterprises, public entities, associations, and individuals (via broker/agent channels)

Role

Intermediary + advisor (insurance/reinsurance market intermediary)

Revenue share

62.8%

Vulcan Materials Company

Aggregates

Market

Construction aggregates (crushed stone, sand & gravel)

Geography

United States (local/regional markets)

Customer

Construction contractors and public infrastructure agencies

Role

Upstream raw materials producer

Revenue share

74.4%

Side-by-side metrics

Marsh & McLennan Companies, Inc.
Vulcan Materials Company
Ticker / Exchange
MMC - New York Stock Exchange
VMC - New York Stock Exchange
Market cap (USD)
$90.4B
$38.3B
Gross margin (TTM)
42.3%
n/a
Operating margin (TTM)
23.2%
n/a
Net margin (TTM)
15.6%
n/a
Sector
Financials
Materials
Industry
Insurance - Brokers
Construction Materials
HQ country
US
US
Primary segment
Risk and Insurance Services
Aggregates
Market structure
Oligopoly
Oligopoly
Market share
n/a
8%-11% (implied)
HHI estimate
n/a
n/a
Pricing power
Moderate
Strong
Moat score
65 / 100
73 / 100
Moat domains
Supply, Demand, Legal
Legal, Supply
Last update
2025-12-31
2026-01-01

Moat coverage

Shared moat types

No overlap yet.

Marsh & McLennan Companies, Inc. strengths

Service Field NetworkBrand TrustSwitching Costs GeneralCompliance AdvantageData Workflow Lockin

Vulcan Materials Company strengths

Permits Rights Of WayGeographic NaturalPhysical Network DensityScale Economies Unit CostSupply Chain Control

Segment mix

Marsh & McLennan Companies, Inc. segments

Full profile >

Risk and Insurance Services

Oligopoly

62.8%

Consulting

Competitive

37.2%

Vulcan Materials Company segments

Full profile >

Aggregates

Oligopoly

74.4%

Asphalt

Competitive

16.8%

Concrete

Competitive

8.8%

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.