VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 2, 2026

Wide Moat Stocks Home My Collections

Stock Comparison

Martin Marietta Materials, Inc. vs S&P Global Inc.

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

S&P Global Inc.

SPGI · New York Stock Exchange

Market cap (USD)$156.2B
Gross margin (TTM)70%
Operating margin (TTM)40.7%
Net margin (TTM)27.5%
SectorFinancials
IndustryFinancial - Data & Stock Exchanges
CountryUS
Data as of2025-12-21
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 S&P Global Inc.'s moat claims, evidence, and risks.

View SPGI analysis

Comparison highlights

  • Moat score gap: Martin Marietta Materials, Inc. leads (78 / 100 vs 77 / 100 for S&P Global Inc.).
  • Segment focus: Martin Marietta Materials, Inc. has 3 segments (52.4% in East Group); S&P Global Inc. has 5 segments (32.6% in S&P Global Market Intelligence).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Strong vs Moderate.
  • Moat breadth: Martin Marietta Materials, Inc. has 4 moat types across 2 domains; S&P Global Inc. has 9 across 5.

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%

S&P Global Inc.

S&P Global Market Intelligence

Market

Financial market data, analytics, and workflow tools for institutions

Geography

Global

Customer

B2B (institutional investors, banks, insurers, corporates)

Role

Data/analytics and workflow software provider

Revenue share

32.6%

Side-by-side metrics

Martin Marietta Materials, Inc.
S&P Global Inc.
Ticker / Exchange
MLM - NYSE
SPGI - New York Stock Exchange
Market cap (USD)
$37.9B
$156.2B
Gross margin (TTM)
n/a
70%
Operating margin (TTM)
n/a
40.7%
Net margin (TTM)
n/a
27.5%
Sector
Materials
Financials
Industry
Construction Materials
Financial - Data & Stock Exchanges
HQ country
US
US
Primary segment
East Group
S&P Global Market Intelligence
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Strong
Moderate
Moat score
78 / 100
77 / 100
Moat domains
Supply, Financial
Demand, Supply, Legal, Network, Financial
Last update
2026-01-01
2025-12-21

Moat coverage

Shared moat types

Benchmark Pricing Power

Martin Marietta Materials, Inc. strengths

Physical Network DensityGeographic NaturalCapex Knowhow Scale

S&P Global Inc. strengths

Data Workflow LockinScope EconomiesRegulated Standards PipeBrand TrustDe Facto StandardCompliance AdvantageSwitching Costs GeneralEcosystem Complements

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%

S&P Global Inc. segments

Full profile >

S&P Global Market Intelligence

Oligopoly

32.6%

S&P Global Ratings

Oligopoly

29.6%

S&P Global Commodity Insights

Oligopoly

15.1%

S&P Global Mobility

Competitive

11.3%

S&P Dow Jones Indices

Oligopoly

11.4%

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.