VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Thursday, January 8, 2026
Stock Comparison
Merck & Co., Inc. vs Tesla, Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Merck & Co., Inc.
MRK · 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 Merck & Co., Inc.'s moat claims, evidence, and risks.
View MRK analysisTesla, Inc.
TSLA · NASDAQ
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Full stock profile
Dive deeper into Tesla, Inc.'s moat claims, evidence, and risks.
View TSLA analysisComparison highlights
- Moat score gap: Tesla, Inc. leads (75 / 100 vs 71 / 100 for Merck & Co., Inc.).
- Segment focus: Merck & Co., Inc. has 2 segments (89.5% in Pharmaceutical); Tesla, Inc. has 3 segments (78.9% in Automotive (vehicles + software + leasing + regulatory credits)).
- Moat breadth: Merck & Co., Inc. has 5 moat types across 3 domains; Tesla, Inc. has 9 across 3.
Primary market context
Merck & Co., Inc.
Pharmaceutical
Branded prescription pharmaceuticals & human vaccines
Global
Wholesalers/retailers, managed care and government payers, hospitals/clinics
R&D-intensive innovator, manufacturer, and marketer
89.5%
Tesla, Inc.
Automotive (vehicles + software + leasing + regulatory credits)
Battery-electric passenger vehicles (BEV) and connected vehicle software
United States (market share datapoint); global competition
Consumers and small fleets
OEM (design, manufacture, direct-to-consumer sales)
78.9%
Side-by-side metrics
Moat coverage
Shared moat types
Merck & Co., Inc. strengths
Tesla, Inc. strengths
Segment mix
Merck & Co., Inc. segments
Full profile >Pharmaceutical
Competitive
Animal Health
Oligopoly
Tesla, Inc. segments
Full profile >Automotive (vehicles + software + leasing + regulatory credits)
Competitive
Services and Other (Supercharging + after-sales + used vehicles + insurance)
Quasi-Monopoly
Energy Generation and Storage (Megapack + Powerwall + solar)
Oligopoly
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 listLooking for expansion-stage stocks?
Proven models entering the expansion stage with unit economics that work.
View expansion-stage stocksCuration & 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.