VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Friday, January 2, 2026
Stock Comparison
Marsh & McLennan Companies, Inc. vs RTX 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
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 analysisRTX Corporation
RTX · 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 RTX Corporation's moat claims, evidence, and risks.
View RTX analysisComparison highlights
- Moat score gap: RTX Corporation leads (69 / 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); RTX Corporation has 3 segments (34.8% in Pratt & Whitney).
- Moat breadth: Marsh & McLennan Companies, Inc. has 5 moat types across 3 domains; RTX Corporation has 8 across 3.
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%
RTX Corporation
Pratt & Whitney
Aircraft engines & aftermarket services (commercial and military)
Global
Airframers, airlines, governments
Engine OEM + MRO
34.8%
Side-by-side metrics
Moat coverage
Shared moat types
Marsh & McLennan Companies, Inc. strengths
RTX Corporation strengths
Segment mix
Marsh & McLennan Companies, Inc. segments
Full profile >Risk and Insurance Services
Oligopoly
Consulting
Competitive
RTX Corporation segments
Full profile >Collins Aerospace
Oligopoly
Pratt & Whitney
Oligopoly
Raytheon
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.