VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Tuesday, December 30, 2025

Stock Comparison

General Dynamics Corporation vs Alphabet Inc.

Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.

General Dynamics Corporation

GD · New York Stock Exchange

Market cap (USD)$92.4B
SectorIndustrials
CountryUS
Data as of2025-12-29
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 General Dynamics Corporation's moat claims, evidence, and risks.

View GD analysis

Alphabet Inc.

GOOGL · The Nasdaq Stock Market

Market cap (USD)$3.7T
SectorCommunication Services
CountryUS
Data as of2025-12-21
Moat score
86/ 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 Alphabet Inc.'s moat claims, evidence, and risks.

View GOOGL analysis

Comparison highlights

  • Moat score gap: Alphabet Inc. leads (86 / 100 vs 80 / 100 for General Dynamics Corporation).
  • Segment focus: General Dynamics Corporation has 4 segments (30.1% in Marine Systems (Nuclear subs + surface shipbuilding)); Alphabet Inc. has 6 segments (56.6% in Google Search & other (Advertising)).
  • Primary market structure: Duopoly vs Quasi-Monopoly. Pricing power: Weak vs Strong.
  • Moat breadth: General Dynamics Corporation has 11 moat types across 3 domains; Alphabet Inc. has 10 across 4.

Primary market context

General Dynamics Corporation

Marine Systems (Nuclear subs + surface shipbuilding)

Market

U.S. Navy nuclear-powered submarine construction and major surface combatant shipbuilding/lifecycle services

Geography

United States

Customer

Government (primarily U.S. Navy)

Role

Prime contractor / shipbuilder / lifecycle services

Revenue share

30.1%

Alphabet Inc.

Google Search & other (Advertising)

Market

Search advertising (intent-based digital ads)

Geography

Global

Customer

Advertisers (SMB to enterprise)

Role

Ad platform / publisher

Revenue share

56.6%

Side-by-side metrics

General Dynamics Corporation
Alphabet Inc.
Ticker / Exchange
GD - New York Stock Exchange
GOOGL - The Nasdaq Stock Market
Market cap (USD)
$92.4B
$3.7T
Sector
Industrials
Communication Services
HQ country
US
US
Primary segment
Marine Systems (Nuclear subs + surface shipbuilding)
Google Search & other (Advertising)
Market structure
Duopoly
Quasi-Monopoly
Market share
45%-55% (estimated)
88%-91% (reported)
HHI estimate
5,000
8,115
Pricing power
Weak
Strong
Moat score
80 / 100
86 / 100
Moat domains
Demand, Supply, Legal
Network, Demand, Legal, Supply
Last update
2025-12-29
2025-12-21

Moat coverage

Shared moat types

Capex Knowhow Scale

General Dynamics Corporation strengths

Brand TrustService Field NetworkRegulated Standards PipeLong Term ContractsGovernment Contracting RelationshipsDesign In QualificationProcurement InertiaCapacity MoatCompliance AdvantageSuite Bundling

Alphabet Inc. strengths

Data Network EffectsHabit DefaultTwo Sided NetworkContent Rights CurrencyOperational ExcellenceDefault OS GatewaySwitching Costs GeneralEcosystem ComplementsIncubation & patient capital

Segment mix

General Dynamics Corporation segments

Full profile >

Aerospace (Gulfstream + Jet Aviation)

Oligopoly

23.6%

Marine Systems (Nuclear subs + surface shipbuilding)

Duopoly

30.1%

Combat Systems (Land vehicles + munitions)

Oligopoly

18.9%

Technologies (C5ISR + Federal IT)

Competitive

27.5%

Alphabet Inc. segments

Full profile >

Google Search & other (Advertising)

Quasi-Monopoly

56.6%

YouTube (Advertising)

Oligopoly

10.3%

Google Network (Advertising)

Competitive

8.7%

Google Subscriptions, Platforms & Devices

Quasi-Monopoly

11.5%

Google Cloud

Oligopoly

12.4%

Other Bets

Competitive

0.5%

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.