VOL. XCIV, NO. 247
* WIDE MOAT STOCKS COMPARISON *
NO ADVICE
Monday, December 29, 2025
Stock Comparison
Northrop Grumman Corporation vs Spirax Group plc
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Northrop Grumman Corporation
NOC · 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 Northrop Grumman Corporation's moat claims, evidence, and risks.
View NOC analysisSpirax Group plc
SPX · London 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 Spirax Group plc's moat claims, evidence, and risks.
View SPX analysisComparison highlights
- Moat score gap: Northrop Grumman Corporation leads (72 / 100 vs 71 / 100 for Spirax Group plc).
- Segment focus: Northrop Grumman Corporation has 4 segments (28.7% in Aeronautics Systems); Spirax Group plc has 3 segments (52.1% in Steam Thermal Solutions).
- Moat breadth: Northrop Grumman Corporation has 6 moat types across 3 domains; Spirax Group plc has 6 across 2.
Primary market context
Northrop Grumman Corporation
Aeronautics Systems
Military aircraft systems (manned & unmanned) plus sustainment/modernization
Global (primarily United States and allies)
U.S. government and allied governments
Prime contractor and major subsystem supplier
28.7%
Spirax Group plc
Steam Thermal Solutions
Industrial and commercial steam systems (condensate management, controls, thermal energy management products and solutions)
Global
Industrial process operators and commercial facility operators
OEM / solutions provider
52.1%
Side-by-side metrics
Moat coverage
Shared moat types
Northrop Grumman Corporation strengths
Spirax Group plc strengths
Segment mix
Northrop Grumman Corporation segments
Full profile >Aeronautics Systems
Oligopoly
Defense Systems
Oligopoly
Mission Systems
Oligopoly
Space Systems
Oligopoly
Spirax Group plc segments
Full profile >Steam Thermal Solutions
Oligopoly
Electric Thermal Solutions
Competitive
Watson-Marlow Fluid Technology Solutions
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.