VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Wednesday, December 31, 2025
Stock Comparison
Marsh & McLennan Companies, Inc. vs S&P Global Inc.
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
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 analysisS&P Global Inc.
SPGI · New York Stock Exchange
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 analysisComparison highlights
- Moat score gap: S&P Global Inc. leads (77 / 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); S&P Global Inc. has 5 segments (32.6% in S&P Global Market Intelligence).
- Moat breadth: Marsh & McLennan Companies, Inc. has 5 moat types across 3 domains; S&P Global Inc. has 9 across 5.
Primary market context
Marsh & McLennan Companies, Inc.
Risk and Insurance Services
Insurance brokerage, risk advisory, and reinsurance brokerage/services
Global
Enterprises, public entities, associations, and individuals (via broker/agent channels)
Intermediary + advisor (insurance/reinsurance market intermediary)
62.8%
S&P Global Inc.
S&P Global Market Intelligence
Financial market data, analytics, and workflow tools for institutions
Global
B2B (institutional investors, banks, insurers, corporates)
Data/analytics and workflow software provider
32.6%
Side-by-side metrics
Moat coverage
Shared moat types
Marsh & McLennan Companies, Inc. strengths
S&P Global Inc. strengths
Segment mix
Marsh & McLennan Companies, Inc. segments
Full profile >Risk and Insurance Services
Oligopoly
Consulting
Competitive
S&P Global Inc. segments
Full profile >S&P Global Market Intelligence
Oligopoly
S&P Global Ratings
Oligopoly
S&P Global Commodity Insights
Oligopoly
S&P Global Mobility
Competitive
S&P Dow Jones Indices
Oligopoly
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View the moat stocks listCuration & 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.