VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Marsh & McLennan Companies, Inc. vs NVIDIA Corporation

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)
SectorFinancials
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

NVIDIA Corporation

NVDA · Nasdaq Stock Market

Market cap (USD)
SectorTechnology
CountryUS
Data as of2025-12-26
Moat score
97/ 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 NVIDIA Corporation's moat claims, evidence, and risks.

View NVDA analysis

Comparison highlights

  • Moat score gap: NVIDIA Corporation leads (97 / 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); NVIDIA Corporation has 5 segments (88.3% in Data Center).
  • Primary market structure: Oligopoly vs Quasi-Monopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: Marsh & McLennan Companies, Inc. has 5 moat types across 3 domains; NVIDIA Corporation has 7 across 3.

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%

NVIDIA Corporation

Data Center

Market

Data center accelerated computing (AI GPUs, systems, and networking)

Geography

Global

Customer

Hyperscale cloud providers, enterprises, public sector (often via OEMs/ODMs and integrators)

Role

Fabless designer and platform supplier (chips, systems, software)

Revenue share

88.3%

Side-by-side metrics

Marsh & McLennan Companies, Inc.
NVIDIA Corporation
Ticker / Exchange
MMC - New York Stock Exchange
NVDA - Nasdaq Stock Market
Market cap (USD)
n/a
n/a
Sector
Financials
Technology
HQ country
US
US
Primary segment
Risk and Insurance Services
Data Center
Market structure
Oligopoly
Quasi-Monopoly
Market share
n/a
78%-85% (estimated)
HHI estimate
n/a
n/a
Pricing power
Moderate
Strong
Moat score
65 / 100
97 / 100
Moat domains
Supply, Demand, Legal
Demand, Network, Supply
Last update
2025-12-31
2025-12-26

Moat coverage

Shared moat types

Data Workflow Lockin

Marsh & McLennan Companies, Inc. strengths

Service Field NetworkBrand TrustSwitching Costs GeneralCompliance Advantage

NVIDIA Corporation strengths

Ecosystem ComplementsCapacity MoatOperational ExcellenceDesign In QualificationSuite BundlingResidual / non-core revenue

Segment mix

Marsh & McLennan Companies, Inc. segments

Full profile >

Risk and Insurance Services

Oligopoly

62.8%

Consulting

Competitive

37.2%

NVIDIA Corporation segments

Full profile >

Data Center

Quasi-Monopoly

88.3%

Gaming

Duopoly

8.7%

Professional Visualization

Oligopoly

1.4%

Automotive

Competitive

1.3%

OEM & Other

Competitive

0.3%

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.