VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

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Friday, January 2, 2026

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Stock Comparison

Martin Marietta Materials, Inc. vs TC Energy 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

TC Energy Corporation

TRP · New York Stock Exchange

Market cap (USD)$37B
Gross margin (TTM)—
Operating margin (TTM)—
Net margin (TTM)—
SectorEnergy
Industry—
CountryCA
Data as of2026-01-02
Moat score
80/ 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 TC Energy Corporation's moat claims, evidence, and risks.

View TRP analysis

Comparison highlights

  • Moat score gap: TC Energy Corporation leads (80 / 100 vs 78 / 100 for Martin Marietta Materials, Inc.).
  • Segment focus: Martin Marietta Materials, Inc. has 3 segments (52.4% in East Group); TC Energy Corporation has 4 segments (46.1% in U.S. Natural Gas Pipelines).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Strong vs Weak.
  • Moat breadth: Martin Marietta Materials, Inc. has 4 moat types across 2 domains; TC Energy Corporation has 4 across 3.

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%

TC Energy Corporation

U.S. Natural Gas Pipelines

Market

U.S. interstate natural gas pipeline transportation (FERC-regulated)

Geography

United States

Customer

Utilities/LDCs, power generators, LNG/export facilities, industrial users and marketers (as shippers)

Role

Midstream pipeline operator

Revenue share

46.1%

Side-by-side metrics

Martin Marietta Materials, Inc.
TC Energy Corporation
Ticker / Exchange
MLM - NYSE
TRP - New York Stock Exchange
Market cap (USD)
$37.9B
$37B
Gross margin (TTM)
n/a
n/a
Operating margin (TTM)
n/a
n/a
Net margin (TTM)
n/a
n/a
Sector
Materials
Energy
Industry
Construction Materials
n/a
HQ country
US
CA
Primary segment
East Group
U.S. Natural Gas Pipelines
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Strong
Weak
Moat score
78 / 100
80 / 100
Moat domains
Supply, Financial
Legal, Demand, Supply
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

TC Energy Corporation strengths

Regulated Standards PipeLong Term ContractsGovernment Contracting Relationships

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%

TC Energy Corporation segments

Full profile >

Canadian Natural Gas Pipelines

Quasi-Monopoly

40.7%

U.S. Natural Gas Pipelines

Oligopoly

46.1%

Mexico Natural Gas Pipelines

Oligopoly

6.3%

Power and Energy Solutions

Competitive

6.9%

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.