Ducommun (STU:DUM) Moat Score: 4/10 (As of Jul. 15, 2026)

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STU:DUM Ducommun Inc STU:DUM
64 GF Score
Price €147.20
GF Value €57.71
Valuation Significantly Overvalued
! 6 Warning Signs
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What is Ducommun Moat Score?

Ducommun STU:DUM +2.65% 64 Moat Score is 4 as of Jul. 15, 2026. GuruFocus rates STU:DUM with a GF Score™ of 64/100 and a GF Value™ of €57.71 (Significantly Overvalued). The stock has 6 warning signs investors should review. Among 348 Aerospace & Defense companies, Ducommun ranks better than 82.76% on this metric.

Ducommun has the Moat Score of 4, which implies that the company might have Narrow Moat - Discernible but modest moat.

Ducommun has Narrow Moat: Ducommun has a modest moat with some proprietary technology and customer relationships in aerospace and defense. However, it lacks strong brand strength and significant regulatory barriers.

Moat Score is a ranking system developed by GuruFocus to assess a company's ability to sustain a competitive advantage, rated on a scale from 0 to 10. It takes into account key factors such as market leadership, cost advantages, network effects, customer switching costs, and more.

The company's Moat Score is based on these criteria:

1. Market leadership and sustainable market share
2. Network effects and significant customer switching costs
3. Valuable intellectual property and patents
4. Strong brand strength and deep customer loyalty
5. Durable cost advantages (e.g., economies of scale, proprietary technology)
6. Significant regulatory barriers and exclusive licenses
7. Superior distribution network
8. Strong and sustainable pricing power
9. Consistent and impactful innovation and R&D capabilities

Based on the research, GuruFocus believes Ducommun might have Narrow Moat - Discernible but modest moat.

Ducommun  (STU:DUM) Moat Score Explanation

The Moat Score ranges from 0 to 10, with 10 as the highest. GuruFocus divided Moat Score into following 8 categories:

Moat Score Moat Level
10Wide Moat - Exceptionally dominant and durable wide moat
8 - 9Wide Moat - Clear and robust wide moat
7Wide Moat - Entry-level wide moat, clearly possessing durable advantages
6Narrow Moat - Strong narrow moat, clearly distinguishable but not wide
5Narrow Moat - Solid narrow moat
4Narrow Moat - Discernible but modest moat
1 - 3No Moat - Very weak/transient advantages
0No Moat - No discernible moat

Ducommun Moat Score Related Terms

STU:DUM vs VVX, LUNR, RDW: Moat Score Comparison

For the Aerospace & Defense subindustry, Ducommun's Moat Score, along with its competitors' market caps and Moat Score data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.

Ducommun Moat Score vs Aerospace & Defense Industry

For the Aerospace & Defense industry and Industrials sector, Ducommun's Moat Score distribution charts can be found below:

* The bar in red indicates where Ducommun's Moat Score falls into.


STU:DUM
64GF Score
Ducommun Inc STU:DUM
Moat Score is just one metric. See GF Score™, valuation, warning signs, and more.
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Frequently Asked Questions Learn more about Moat Score →
What does a Moat Score of 4 mean?
Ducommun (STU:DUM) has a Moat Score of 4 as of Jul. 15, 2026. Moat Score is a ranking system developed by GuruFocus to assess a company's ability to sustain a competitive advantage, rated on a scale from 0 to 10. It takes into account key factors such as market leadership, cost advantages, network effects, customer switching costs, and more. According to the industry distribution chart, Ducommun ranks #60 out of 348 companies in the Aerospace & Defense industry, placing it in the top 17.2%.
Is Ducommun's Moat Score too high?
Ducommun's current Moat Score is 4. Based on the distribution chart, Ducommun ranks #60 out of 348 companies in the Aerospace & Defense industry, which is in the top quartile — a strong position relative to peers. Overall, Ducommun has a GF Score™ of 64/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Ducommun's Moat Score compare to VVX and LUNR?
According to the Aerospace & Defense industry distribution chart, Ducommun ranks #60 out of 348 companies for Moat Score. This places Ducommun in the top 17% of its industry — outperforming the majority of peers. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Moat Score for an Aerospace & Defense company?
A good Moat Score depends on the Aerospace & Defense industry context. However, Moat Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Moat Score mean?
A high Moat Score can signal that a stock is expensive relative to its fundamentals. Moat Score is a ranking system developed by GuruFocus to assess a company's ability to sustain a competitive advantage, rated on a scale from 0 to 10. It takes into account key factors such as market leadership, cost advantages, network effects, customer switching costs, and more. Ducommun's current Moat Score is 4. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ducommun stock overvalued right now?
Based on GuruFocus' analysis, Ducommun (STU:DUM) is currently considered Significantly Overvalued. The stock's GF Value™ is €57.71, compared to a current price of €147.20 — trading 155.1% above its estimated fair value. The current Moat Score is 4. Ducommun's overall GF Score™ is 64/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Moat Score calculated?
Moat Score is calculated from a company's financial statements. For Ducommun (STU:DUM), the current Moat Score is 4 as of Jul. 15, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is Ducommun (STU:DUM) Overvalued in 2026?

Based on GuruFocus' analysis, Ducommun stock appears to be overvalued. The current stock price of €147.20 is trading 155.1% above its estimated GF Value™ of €57.71. GuruFocus considers Ducommun to be Significantly Overvalued.

Key valuation signals for STU:DUM:

  • Moat Score: 4
  • GF Value™: €57.71 vs. price of €147.20 (155.1% above fair value)
  • GF Score™: 64/100 with 6 warning signs

No single metric tells the full story. See the STU:DUM stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

Ducommun Business Description

Other Exchanges DCO:USADUM:Germany
Address 600 Anton Boulevard, Suite 1100, Costa Mesa, CA, USA, 92626-7100
Ducommun Inc provides engineering & manufacturing services for high-performance products & high-cost-of failure applications used in the aerospace and defense, industrial, medical & other industries. The company's reportable segments are Structural Systems & Electronic Systems. Structural Systems designs, engineers, and manufactures various sizes of complex contoured aerostructure components and assemblies, and supplies composite and metal-bonded structures and assemblies. Electronic Systems designs, engineers and manufactures high-reliability electronic and electromechanical products used in technology-driven markets, including A&D and Industrial end-use markets. It generates a maximum of its revenue from the Electronic Systems.
64GF Score

Get the complete analysis for STU:DUM

Moat Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€147.20
Price
€57.71
GF Value