DCO (Ducommun) Cyclically Adjusted Book per Share: $38.65 (As of Jun. 2026)

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DCO Ducommun Inc DCO
64 GF Score
Price $191.65
GF Value $70.45
Valuation Significantly Overvalued
! 6 Warning Signs
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What is Ducommun Cyclically Adjusted Book per Share?

Ducommun DCO +1.36% 64 Cyclically Adjusted Book per Share is $38.65 as of Jun. 2026. GuruFocus rates DCO with a GF Score™ of 64/100 and a GF Value™ of $70.45 (Significantly Overvalued). The stock has 6 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

Ducommun's adjusted book value per share for the three months ended in Jun. 2026 was $45.727. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is $38.65 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Ducommun's average Cyclically Adjusted Book Growth Rate was 8.80% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 7.70% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 9.00% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 5.00% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of Ducommun was 46.10% per year. The lowest was 0.80% per year. And the median was 8.40% per year.

As of today (2026-08-22), Ducommun's current stock price is $191.65. Ducommun's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was $38.65. Ducommun's Cyclically Adjusted PB Ratio of today is 4.96.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Ducommun was 5.36. The lowest was 0.81. And the median was 1.73.


Ducommun  (NYSE:DCO) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

Ducommun's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=191.65/38.65
=4.96

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Ducommun was 5.36. The lowest was 0.81. And the median was 1.73.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


Ducommun Cyclically Adjusted Book per Share Related Terms


Ducommun Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Ducommun's Cyclically Adjusted Book per Share can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Ducommun Cyclically Adjusted Book per Share Chart

Ducommun Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 25.95 29.21 31.66 33.99 36.53

Ducommun Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted Book per Share Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 35.52 36.09 36.53 37.72 38.65

DCO vs VVX, AADX, YSS: Cyclically Adjusted Book per Share Comparison

For the Aerospace & Defense subindustry, Ducommun's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB Ratio 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 Cyclically Adjusted PB Ratio vs Aerospace & Defense Industry

For the Aerospace & Defense industry and Industrials sector, Ducommun's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Ducommun's Cyclically Adjusted PB Ratio falls into.


DCO
64GF Score
Ducommun Inc DCO
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Ducommun Cyclically Adjusted Book per Share Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

We adjusted the 2001 book value per share data with the total inflation from 2001 through 2010 to the equivalent book value in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's book value is $1 a share in 2001, then the 2001's equivalent book value in 2010 is $1.4 a share. If Wal-Mart's book value is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 book value in 2010 is $1.35. So on and so forth, you get the equivalent book value per share of past 10 years. Then you add them together and divided the sum by the count to get Cyclically Adjusted Book per Share.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

For example, Ducommun's adjusted Book Value per Share data for the three months ended in Jun. 2026 was:

Adj_Book= Book Value per Share /CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=45.727/333.9520*333.9520
=45.727

Current CPI (Jun. 2026) = 333.9520.

Ducommun Quarterly Data

Book Value per Share CPI Adj_Book
201609 18.887 241.428 26.125
201612 18.948 241.432 26.209
201703 19.015 243.801 26.046
201706 19.346 244.955 26.375
201709 19.837 246.819 26.840
201712 20.787 246.524 28.159
201803 21.730 249.554 29.079
201806 21.926 251.989 29.058
201809 22.398 252.439 29.630
201812 22.493 251.233 29.899
201903 22.981 254.202 30.191
201906 23.619 256.143 30.794
201909 24.544 256.759 31.923
201912 25.300 256.974 32.879
202003 25.962 258.115 33.590
202006 26.501 257.797 34.330
202009 27.267 260.280 34.985
202012 28.081 260.474 36.002
202103 28.318 264.877 35.703
202106 29.043 271.696 35.698
202109 30.108 274.310 36.654
202112 39.799 278.802 47.672
202203 40.531 287.504 47.079
202206 41.146 296.311 46.373
202209 42.042 296.808 47.303
202212 43.446 296.797 48.885
202303 43.197 301.836 47.793
202306 42.700 305.109 46.737
202309 43.533 307.789 47.233
202312 43.565 306.746 47.429
202403 43.894 312.332 46.932
202406 44.477 314.175 47.277
202409 45.041 315.301 47.705
202412 46.013 315.605 48.688
202503 46.611 319.799 48.674
202506 47.432 322.561 49.107
202509 43.426 324.800 44.650
202512 44.246 324.054 45.597
202603 44.407 330.213 44.910
202606 45.727 333.952 45.727

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

What does a Cyclically Adjusted Book per Share of $38.65 mean?
Ducommun (DCO) has a Cyclically Adjusted Book per Share of $38.65 as of Jun. 2026. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Ducommun and its competitors.
Is Ducommun's Cyclically Adjusted Book per Share too high?
Ducommun's current Cyclically Adjusted Book per Share is $38.65. 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 Cyclically Adjusted Book per Share compare to VVX and AADX?
Ducommun's Cyclically Adjusted Book per Share of $38.65 can be compared against companies in the Aerospace & Defense industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted Book per Share for an Aerospace & Defense company?
A good Cyclically Adjusted Book per Share depends on the Aerospace & Defense industry context. However, Cyclically Adjusted Book per Share 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 Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Ducommun and its competitors. Ducommun's current Cyclically Adjusted Book per Share is $38.65. 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 (DCO) is currently considered Significantly Overvalued. The stock's GF Value™ is $70.45, compared to a current price of $191.65 — trading 172% above its estimated fair value. The current Cyclically Adjusted Book per Share is $38.65. 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 Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For Ducommun (DCO), the current Cyclically Adjusted Book per Share is $38.65 as of Jun. 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 (DCO) Overvalued in 2026?

Based on GuruFocus' analysis, Ducommun stock appears to be overvalued. The current stock price of $191.65 is trading 172% above its estimated GF Value™ of $70.45. GuruFocus considers Ducommun to be Significantly Overvalued.

Key valuation signals for DCO:

  • Cyclically Adjusted Book per Share: $38.65
  • GF Value™: $70.45 vs. price of $191.65 (172% above fair value)
  • GF Score™: 64/100 with 6 warning signs

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


Ducommun Business Description

Other Exchanges DUM: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 DCO

Cyclically Adjusted Book per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$191.65
Price
$70.45
GF Value