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Ducommun Inc (NYSE:DCO)
Shiller P/E Ratio
86.17 (As of Today)

As of today, Ducommun Inc's current share price is $19.82. Ducommun Inc's E10 for the quarter that ended in Jun. 2016 was $0.23. Ducommun Inc's Shiller P/E Ratio for today is 86.17.

DCO' s Shiller P/E Ratio Range Over the Past 10 Years
Min: 7.76   Max: 118.71
Current: 87.94


During the past 13 years, Ducommun Inc's highest Shiller P/E Ratio was 118.71. The lowest was 7.76. And the median was 15.83.

DCO's Shiller P/E Ratio is ranked lower than
84% of the 74 Companies
in the Global Aerospace & Defense industry.

( Industry Median: 26.20 vs. DCO: 87.94 )

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.

Ducommun Inc's adjusted earnings per share data for the three months ended in Jun. 2016 was $0.340. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $0.23 for the trailing ten years ended in Jun. 2016.


For the Shiller P/E, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller P/E is also called PE10.

The Shiller P/E was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

Ducommun Inc's Shiller P/E Ratio for today is calculated as

Shiller P/E Ratio=Share Price/E10

* All numbers are in millions except for per share data and ratio. All numbers are in their own currency.

Ducommun Inc's E10 for the fiscal year that ended in Dec15 is calculated as:

For example, Ducommun Inc's adjusted earnings per share data for the three months ended in Jun. 2016 was:

Adj_EPS=Earnigns per Share/CPI of Jun. 2016 (Change)*Current CPI (Jun. 2016)

Current CPI (Jun. 2016) = 241.038.

Ducommun Inc Quarterly Data

per share eps 0.4600.6000.2600.470-0.1800.160-0.860-5.7501.2100.340
CPI 236.293238.343238.031234.812236.119238.638237.945236.525238.132241.038
Adj_EPS 0.4690.6070.2630.482-0.1840.162-0.871-5.8601.2250.340
per share eps 0.090-4.6100.2300.5200.4800.4300.3500.5100.420-0.240
CPI 226.889225.672229.392229.478231.407229.601232.773233.504234.149233.049
Adj_EPS 0.096-4.9240.2420.5460.5000.4510.3620.5260.432-0.248
per share eps 0.2500.4400.590-0.3100.4000.5300.5500.3900.270-0.280
CPI 212.709215.693215.969215.949217.631217.965218.439219.179223.467225.722
Adj_EPS 0.2830.4920.658-0.3460.4430.5860.6070.4290.291-0.299
per share eps 0.4000.4200.3700.4400.5500.5200.4900.5500.590-0.400
CPI 202.900201.800205.352208.352208.490210.036213.528218.815218.783210.228
Adj_EPS 0.4750.5020.4340.5090.6360.5970.5530.6060.650-0.459

Add all the adjusted EPS together and divide 10 will get our E10.


Compared with the regular P/E ratio, which works poorly for cyclical businesses, the Shiller P/E smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Shiller P/E should give similar results to regular P/E.

Compared with the P/S ratio, the Shiller P/E makes the comparison between different industries more meaningful.

Be Aware

The Shiller P/E assumes that over the long term, businesses and profitability revert to their means. If a company’s business model does not work in the future compared with the past, the Shiller P/E and P/S ratio will give false valuations.

Related Terms

P/E Ratio, P/B Ratio, P/S Ratio, Price-to-Free-Cash-Flow ratio, E10

Historical Data

* All numbers are in millions except for per share data and ratio. All numbers are in their own currency.

Ducommun Inc Annual Data

ShillerPE 14.7123.1311.1412.7314.3313.8615.8531.8125.85119.24

Ducommun Inc Quarterly Data

ShillerPE 25.9826.6328.1625.8528.1328.6326.40119.2467.4787.76
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