DDOSF (Corero Network Security) Shiller PE Ratio: (As of Aug. 13, 2026)

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DDOSF Corero Network Security PLC DDOSF
49 GF Score
Price $0.10
GF Value $0.19
Valuation Possible Value Trap
! 4 Warning Signs
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What is Corero Network Security Shiller PE Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Corero Network Security  (OTCPK:DDOSF) Shiller PE Ratio Explanation

Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio 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 PE Ratio should give similar results to regular PE Ratio.

Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.


Be Aware

Shiller PE Ratio 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, Shiller PE Ratio and PS Ratio will give false valuations.


Corero Network Security Shiller PE Ratio Related Terms


Corero Network Security Shiller PE Ratio Historical Data

* Premium members only.

The historical data trend for Corero Network Security's Shiller PE Ratio 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.

Corero Network Security Shiller PE Ratio Chart

Corero Network Security Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Shiller PE Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00

Corero Network Security Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Shiller PE Ratio 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 0.00 0.00 0.00 0.00 0.00

DDOSF vs MSFT, ORCL, PLTR: Shiller PE Ratio Comparison

For the Software - Infrastructure subindustry, Corero Network Security's Shiller PE Ratio, along with its competitors' market caps and Shiller PE 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.


Corero Network Security Shiller PE Ratio vs Software Industry

For the Software industry and Technology sector, Corero Network Security's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Corero Network Security's Shiller PE Ratio falls into.


DDOSF
49GF Score
Corero Network Security PLC DDOSF
Shiller PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Corero Network Security Shiller PE Ratio Calculation

For Shiller PE Ratio, 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 PE Ratio is also called PE10.

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

Corero Network Security's E10 for the fiscal year that ended in Dec25 is calculated as:

For example, Corero Network Security's adjusted earnings per share data for the fiscal year that ended in Dec25 was:

Adj_EPS=Earnings per Share (Diluted)/CPI of Dec25 (Change)*Current CPI (Dec25)
=-0.001/139.9000*139.9000
=-0.001

Current CPI (Dec25) = 139.9000.

Corero Network Security Annual Data

Earnings per Share (Diluted) CPI Adj_EPS
201612 -0.090 102.200 -0.123
201712 -0.030 105.000 -0.040
201812 -0.014 107.100 -0.018
201912 -0.016 108.500 -0.021
202012 -0.008 109.400 -0.010
202112 0.003 114.700 0.004
202212 0.001 125.300 0.001
202312 0.000 130.500 0.000
202412 0.001 135.100 0.001
202512 -0.001 139.900 -0.001

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

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.

Is Corero Network Security (DDOSF) Overvalued in 2026?

Based on GuruFocus' analysis, Corero Network Security stock appears to be undervalued. The current stock price of $0.10 is trading 47.4% below its estimated GF Value™ of $0.19. GuruFocus considers Corero Network Security to be Possible Value Trap.

Key valuation signals for DDOSF:

  • Shiller PE Ratio:
  • GF Value™: $0.19 vs. price of $0.10 (47.4% below fair value)
  • GF Score™: 49/100 with 4 warning signs

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


Corero Network Security Business Description

Other Exchanges CNS:UK
Address 29 Finsbury Circus, Salisbury House, London, GBR, EC2M 5QQ
Corero Network Security PLC is a network security solutions provider. The company offers Distributed Denial of Service (DDoS) defense solutions for service providers, hosting providers and data centers, managed security service providers, and online enterprises. The company's key products are SmartWall Network Threat Defense System, Datapath protection, SecureWatch Analytics, Scrubbing protection, Edge mitigation, and Cloud mitigation. Geographically, it derives a majority of its revenue from the USA.
49GF Score

Get the complete analysis for DDOSF

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

$0.10
Price
$0.19
GF Value