VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Monday, December 29, 2025

Stock Comparison

Alphabet Inc. vs MTU Aero Engines AG

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

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

MTU Aero Engines AG

MTX · Deutsche Boerse XETRA

Market cap (USD)
SectorIndustrials
CountryDE
Data as of2025-12-28
Moat score
61/ 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 MTU Aero Engines AG's moat claims, evidence, and risks.

View MTX analysis

Comparison highlights

  • Moat score gap: Alphabet Inc. leads (86 / 100 vs 61 / 100 for MTU Aero Engines AG).
  • Segment focus: Alphabet Inc. has 6 segments (56.6% in Google Search & other (Advertising)); MTU Aero Engines AG has 2 segments (67.4% in MRO business (commercial maintenance)).
  • Primary market structure: Quasi-Monopoly vs Competitive. Pricing power: Strong vs Moderate.
  • Moat breadth: Alphabet Inc. has 10 moat types across 4 domains; MTU Aero Engines AG has 8 across 3.

Primary market context

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%

MTU Aero Engines AG

MRO business (commercial maintenance)

Market

Commercial aircraft engine maintenance, repair and overhaul (engine MRO) and associated services

Geography

Global

Customer

Airlines, lessors and engine owners/operators

Role

Aftermarket service provider (engine shop visits, repairs, on-wing services, leasing/asset management)

Revenue share

67.4%

Side-by-side metrics

Alphabet Inc.
MTU Aero Engines AG
Ticker / Exchange
GOOGL - The Nasdaq Stock Market
MTX - Deutsche Boerse XETRA
Market cap (USD)
$3.7T
n/a
Sector
Communication Services
Industrials
HQ country
US
DE
Primary segment
Google Search & other (Advertising)
MRO business (commercial maintenance)
Market structure
Quasi-Monopoly
Competitive
Market share
88%-91% (reported)
10% (reported)
HHI estimate
8,115
n/a
Pricing power
Strong
Moderate
Moat score
86 / 100
61 / 100
Moat domains
Network, Demand, Legal, Supply
Demand, Supply, Legal
Last update
2025-12-21
2025-12-28

Moat coverage

Shared moat types

Operational ExcellenceCapex Knowhow Scale

Alphabet Inc. strengths

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

MTU Aero Engines AG strengths

Design In QualificationScope EconomiesGovernment Contracting RelationshipsService Field NetworkPreferential Input AccessLong Term Contracts

Segment mix

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%

MTU Aero Engines AG segments

Full profile >

OEM business (commercial and military engine business)

Oligopoly

32.6%

MRO business (commercial maintenance)

Competitive

67.4%

Want the full wide moat stocks list?

Browse the full ranking of wide moat stocks, updated with moat scores and segment context.

View the moat stocks list

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.