EN DE
Check 35,000+ stocks against 26 valuation models and 37 quality factors
Data-driven stock valuation

Corero Network Security plc (DDOSF) fair value: what the stock is really worth

We calculate from audited financials what Corero Network Security plc is really worth. The fair value tells you whether the price is too high or too low, the quality score (0 to 100) how solid the business behind it is. 26 models, 37 quality factors, updated daily.

  1. Fair value above price? No
  2. Good quality? No
  3. Add to watchlist

Technology · US · ISIN GB00B54X0432

CN Corero Network Security plc logo Thin data Sep 13, 2026

Corero Network Security plc

DDOSF · US

Weak valuationQuality is weak on top of the rich price.

!Fair value $0.0719 · Overvalued (−9%)
!Quality 40/100
!Expensive Growth (revenue 5y +8.6 %/yr)
!Loss-making · -2.8% net margin (TTM)
!Low debt · negative free cash flow
!Narrow moat 24/100
!Evidence only low, so the estimate is less certain
Watch Corero Network Security plc for free, get notified when fair value or trend changes. Plus fair value for all 35,000+ stocks, 14 days of Pro free, no card. Watch for free

What runs behind every stock

26 valuation models 8 families, DCF to NCAV 37 quality factors margins, balance sheet, cashflow, debt 6 AI factors moat, what no ratio measures 2,000+ data points verified, per stock, median

69 individual criteria per stock, every one traceable See the method →

Price vs Fair Value

$0.3900 $0.0792 Fair Value $0.0719 Apr 2024 Sep 2026

White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Sep 13, 2026.

How to read this chart

29‑month range $0.0792 – $0.3900 · fair‑value band $0.0561 – $0.0798 · the $0.0792 price screens above the $0.0719 fair value. Dashed = 300-day average. As of Sep 13, 2026.

Which stocks are undervalued right now? Check free Discover now →

Company profile

Corero Network Security plc, together with its subsidiaries, provides network security solutions in the United States, the United Kingdom, and internationally.

Show more

Corero Network Security plc, together with its subsidiaries, provides network security solutions in the United States, the United Kingdom, and internationally. The company offers SmartWall One, a distributed denial of service solution that provides hybrid and on-premises DDoS protection solutions; deployment options comprising inline and data path protection, edge mitigation, and scrubbing; SecureWatch managed services; and DDoS intelligent services. It also offers Corero Observability and Resiliency Ecosystem, a cloud-native visibility and protection platform that provides application layer protection, zero trust admission control, advanced anti-bot protection, comprehensive threat intelligence, and real-time traffic analysis. In addition, the company engages in the sale of hardware appliances and software licenses; and subscription, maintenance and support, installation and training, professional, and project services. It serves internet service, hosting, cloud, and SaaS providers, as well as enterprises. The company was formerly known as Corero plc and changed its name to Corero Network Security plc in June 2011. Corero Network Security plc was incorporated in 1991 and is headquartered in London, the United Kingdom.

Stock analysis

Corero Network Security plc (DDOSF) currently trades at $0.0792, while our model-based Fair Value estimate is $0.0719, implying the stock looks roughly 10.1% fairly valued today.

Show more

Valuation

How firm this estimate is: it rests on 2 models at a data quality of 95/100, which puts the evidence level at low.

Scenario range: $0.0561 (bear) to $0.0798 (bull), the price of $0.0792 sits inside it. Bear and bull are the same models on cautious and optimistic assumptions, a range, not a price target.

Quality & growth

The Quality Score stands at 40/100 (below-average quality), in the Technology sector.

Expensive Growth: The company is growing, but growth may require heavy reinvestment or weak cash conversion.

Corero Network Security plc reported revenue of $25.5M in FY2025 versus $20.9M in FY2021, a compound +5.1%/yr. Reported net income was −$711K in FY2025.

Key figures

Market cap $84.8M · P/S ratio 3.32 · Net margin −2.8% · Return on equity −3.8% · Return on assets (EBIT) 1.1% · Operating margin 11.8% · Revenue (TTM) $25.5M · Revenue growth (YoY) +17.7%.

Competitive moat

Our AI-assisted moat analysis scores the competitive advantage at 42 out of 100 (low confidence).

What moves the price

The share trades about 67% below its 52-week high, currently below its 200-day average.

For context, the median of 10 Technology peers we cover trades at −22% fair-value upside, at −9%, DDOSF screens cheaper than that median.

Fair Value models

Bear $0.0561 Fair Value $0.0719 Bull $0.0798
Model ⓘEach model values the company its own way (discounted cash flow, earnings, assets, dividends). The fair value above is their evidence-weighted blend, not the output of a single model. Bear ⓘBear = the cautious scenario: the same model computed with conservative anchors (lower growth, margins and valuation multiples). Together with Bull it frames a plausible valuation range, not a price target.BaseBull ⓘBull = the optimistic scenario: the same model computed with favourable anchors (higher growth, margins and valuation multiples). Together with Bear it frames a plausible valuation range, not a price target. Evidence ⓘEvidence = how well-backed THIS model's estimate is for this stock (0–100): how complete and reliable its input data are, and how well the model fits the company. The final Fair Value is an evidence-weighted blend, so better-evidenced models count more. Green ≥70, amber 50–69, grey below 50.
Highest evidence
EV/EBITDA $0.0500 $0.0700 $0.0800 67
NCAV (Graham) $0.0200 $0.0200 $0.0400 52
All 2 models by family
Multiples
EV/EBITDA $0.0500 $0.0700 $0.0800 67
Asset-Based
NCAV (Graham) $0.0200 $0.0200 $0.0400 52

Open the full fair value analysis →

Notify me when DDOSF reaches fair value

Put DDOSF on your watchlist. We get in touch as soon as price and fair value meet or the trend turns.

Set up alert →

Quality Score breakdown

Overall quality 40/100

Of which business quality 43 · Market factors (momentum, volatility) 19

Profitability 34
Margins and returns on capital today
Quality Growth 38
Are margins and returns improving?
Cashflow 16
Earnings quality: real cash, not paper profit
Fin. Strength 56
Balance sheet, leverage, solvency risk
Investment 51
Disciplined investing over empire-building
Low Volatility 50
Calm price path (market factor)
Momentum 9
Price trend over the last 3–12 months (market factor)
52W Momentum 0
Distance to the 52-week high (market factor)
Net Issuance 78
Share count: buybacks or dilution?

Open the full quality analysis →

Revenue & earnings trend

Growth Quality ⓘGrowth is valuable only when reinvestment earns attractive returns (Aswath Damodaran): sustainable growth depends on return on capital, reinvestment and efficiency. Basis: total company revenue over the periods shown on the cards (3Y/5Y/all years), not per share, so a merger can show up as a growth jump; per-share earnings growth is in the value-creation card. 31/100
The company is growing, but growth may require heavy reinvestment or weak cash conversion.
Revenue growth 1 year
+3.8%
Revenue growth 3 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+8.2%
Revenue growth 5 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+8.6%
Profit margin (trend) ⓘOperating margin then vs now, from reported annual statements. A falling margin after a boom year is the classic peak-earnings signal: the growth rate then leans on an inflated base.
−22.2% (2020) → −2.6% (2025)
What shareholders gained per year ⓘWe only publish this rate when it is defensible. Reason: fiscal 2025 is a loss year, no rate is defined from a loss
not computed

Watch DDOSF, get fair value alerts →

Compare Corero Network Security plc with another stock

Price, fair value, quality and upside side by side.

Free, no sign-up

Peer GroupⓘHow this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.Software - Infrastructure · 379 stocks

Beats the industry median on 3/8 measures
Overall it trails its industry peers.
Valuation
Quality Score 43 · Below median
Fair Value upside −12% · Above median
Profitability
Return on assets −1% · Below median
Net margin (TTM) −3% · Below median
Operating margin (TTM) 12% · Above median
Growth and dividend
Revenue growth 18% · Above median

Valuation Multiplesvs Software - Infrastructure median · lower = cheaper

P/B 4.57× · Pricier than median
P/S (TTM) 3.32× · Pricier than median

Context: sector, industry, market

Values & ESG

Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.

None of the checked exposures detected

Similar stocks

10 more Software - Infrastructure stocks, each showing price versus our Fair Value estimate.

Stock Price Fair Value vs Fair Value
Microsoft Corporation MSFT $493.48 $542.83 +10%
Oracle Corporation ORCL $150.28 $117.84 −22%
Palantir Technologies Inc PLTR $167.23 $42.96 −74%
Palo Alto Networks, Inc PANW $330.65 $114.50 −65%
CrowdStrike Holdings CRWD $206.74 $34.64 −83%
Fortinet, Inc FTNT $156.07 $164.92 +6%
Synopsys, Inc SNPS $397.38 $177.06 −55%
Block, Inc XYZ A$109.44 A$141.48 +29%
CoreWeave, Inc CRWV $88.99 $71.79 −19%
Twilio Inc TWLO $227.35 $59.44 −74%

Explore undervalued stocks

More undervalued Technology stocks →

All undervalued stocks TechnologyFinancial ServicesHealthcareConsumer CyclicalConsumer DefensiveCommunication ServicesIndustrialsEnergyBasic MaterialsReal EstateUtilities Deeply Undervalued StocksUndervalued High-Quality StocksUndervalued Blue-Chip StocksUndervalued Small-Cap StocksUndervalued Dividend Stocks

Try a ready-made strategy

Pick a strategy and jump into the live analysis with that exact screen applied.

🥇 Backtested Best 🏆 Big Names ⭐ Top Rated 💎 Quality on Sale 🚀 Profitable Growth 🧊 Quality Compounders 💵 Dividend Stars 📈 Strong Momentum 📉 Fallen Angels ⚖️ Deeply Undervalued 🔍 Small-Cap Gems 🏰 Moat at a Fair Price 💼 Insider Buying 🎩 Buffett-Style Quality 📚 Peter Lynch GARP 🧮 Greenblatt Magic Formula 🛡️ Graham Defensive

Discover tools

Stock screenerFilter by region, size and sector Compare toolTwo stocks side by side Extrinsic Value Calculator…Calculator with industry benchmark Peter Lynch Fair Value Formula &…Calculator with industry benchmark
Run the numbers yourself: free valuation calculators
DCF CalculatorGraham NumberPeter Lynch FormulaDDM CalculatorFama-French ModelIntrinsic Value
For bloggers & editors: embed code + live data

For bloggers, editors and developers: paste this into your site or blog (a “Custom HTML” block in WordPress), it shows the current fair value and links back here. Free, plain HTML, and welcome. Full data streams (CSV/JSON) at /developers.

Corero Network Security plc · Fair Value
$0.0719 −10%Fair Value
Calculator →

Cite: Fair Value Calculator (2026). "Corero Network Security plc Fair Value". https://www.fairvalue-calculator.com/stock/DDOSF

Frequently asked questions

Is Corero Network Security plc (DDOSF) overvalued or undervalued?
As of Sep 13, 2026, our model estimates a fair value of $0.0719 versus a price of $0.0792, about −9% upside (fairly valued).
What is the fair value of DDOSF?
Our model-based fair value for Corero Network Security plc is $0.0719 (as of Sep 13, 2026), built from audited fundamentals. The current price: $0.0792.
What is the quality score of DDOSF?
Corero Network Security plc has a Quality Score of 40/100. It measures business quality (profitability, growth, cash flow, balance-sheet strength, investment discipline, share issuance). Market factors such as price momentum and volatility do not enter the number; they are shown separately in the detail view.
What is the price target for Corero Network Security plc (DDOSF)?
Our model-based price target is the fair value of $0.0719 (as of Sep 13, 2026) from 2 valuation models. Cautious scenario $0.0561, optimistic scenario $0.0798. It is a calculation from audited fundamentals, not an analyst target.
What is the Corero Network Security plc stock forecast for 2026?
Our models put fair value at $0.0719, about −9% upside versus a price of $0.0792 (fairly valued). Cautious scenario $0.0561, optimistic scenario $0.0798. The calculation is refreshed regularly with new filings.
What is the revenue of Corero Network Security plc (DDOSF)?
Corero Network Security plc reported trailing-twelve-month revenue of about $25.5M (latest available figure, as of Sep 13, 2026).
What is the intrinsic value of Corero Network Security plc (DDOSF)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Corero Network Security plc it is $0.0719 per share (as of Sep 13, 2026), against a price of $0.0792. It is the blended result of 2 valuation models (cash flow, earnings, asset, dividend).
Is Corero Network Security plc stock overvalued or undervalued in 2026?
As of Sep 13, 2026, DDOSF trades above its calculated fair value: price $0.0792, fair value $0.0719, a gap of about −9% (fairly valued). The calculation is refreshed with each new quarterly report, so the verdict can change during the year.
Is fair value the same as the market price of DDOSF?
No. The price is what the market pays today ($0.0792); the fair value is what the company's own numbers justify ($0.0719). For Corero Network Security plc the two are $0.0073 per share apart. That gap is exactly why we show both numbers side by side.
How much is Corero Network Security plc worth?
The market values Corero Network Security plc at about $84.8M (market capitalisation, as of Sep 13, 2026). Per share that is $0.0792; our models calculate a fair value of $0.0719 per share.
What do the bullish and bearish scenarios say about DDOSF?
Our models span a range for Corero Network Security plc: cautious scenario $0.0561, base $0.0719, optimistic $0.0798 per share (as of Sep 13, 2026, price $0.0792). The range comes from different growth and margin assumptions, not from analyst opinions.
How solid is the balance sheet of Corero Network Security plc (DDOSF)?
Balance-sheet figures for Corero Network Security plc (as of Sep 13, 2026): return on equity −3.8%. They feed the Quality Score of 40/100, which measures business quality independently of the share price.
How far is DDOSF from its 52-week high?
Corero Network Security plc trades at $0.0792, about 67% below its 52-week high of $0.2400 (as of Sep 13, 2026). Distance from the high says nothing about value: that is what the fair value of $0.0719 is for.
Which stocks are comparable to Corero Network Security plc?
From the same area (Technology) we also value Microsoft Corporation, Oracle Corporation, Palantir Technologies Inc, Palo Alto Networks, Inc, among others. Each of them has its own fair-value calculation on this site using the same models, so the comparison is like for like.
Is Corero Network Security plc stock attractive at the current price?
The data as of Sep 13, 2026: price $0.0792, calculated fair value $0.0719 (−9%), Quality Score 40/100, from 2 models. Whether that fits your horizon and risk tolerance is your call. We provide the calculation, not investment advice.
How is the fair value of DDOSF calculated?
We run Corero Network Security plc through 2 models from four families: discounted cash flow, earnings models, asset and balance-sheet models, and dividend models. Every model gets the same audited fundamentals; the result is the weighted average of $0.0719, with the spread shown as a cautious and an optimistic scenario.
Is it still worth investing in stocks now?
The global stock market currently sits 15.8 % above its aggregate fair value. Corero Network Security plc itself currently trades above fair value. An expensive market is no reason to stay out and no reason to buy everything at once: keep a broad savings plan running, buy single stocks only with money you can do without, and hold part of your money liquid while the market is high. The full picture including sectors is on is it worth investing now.
What should I pay attention to with Corero Network Security plc right now?
The price sits close to our fair value, market and models broadly agree here, little valuation tension. Evidence is limited here (fewer models, shorter history), so the fair value is a rougher estimate than usual.

Key figures of Corero Network Security plc

How large is the market capitalisation of Corero Network Security plc (DDOSF)?
The market capitalisation of Corero Network Security plc is $84.8M. The stock-market value of the whole company: share price times number of shares. It is what the market asks for the entire business today.
What is the P/S ratio of Corero Network Security plc (DDOSF)?
The price-to-sales ratio of Corero Network Security plc is 3.32 (last twelve months). Price to sales: market value relative to yearly revenue. Useful when profit is thin or distorted.
What is the net margin of Corero Network Security plc (DDOSF)?
The net margin of Corero Network Security plc is −2.8% (fiscal year 2025). How much of every unit of revenue ends up as profit. 10% means 10 cents of profit per dollar of sales.
What is the return on equity of Corero Network Security plc (DDOSF)?
The return on equity (ROE) of Corero Network Security plc is −3.8% (last twelve months). Profit relative to shareholders' equity, how efficiently the company works with its owners' money.
What is the EBIT return on assets of Corero Network Security plc (DDOSF)?
On an EBIT basis the return on assets of Corero Network Security plc is 1.1% (avg 5y). Operating profit (EBIT) relative to everything the company owns, as a multi-year average. It describes the business model rather than one good or bad year.
What is the operating margin of Corero Network Security plc (DDOSF)?
The operating margin of Corero Network Security plc is 11.8% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at Corero Network Security plc (DDOSF)?
Revenue at Corero Network Security plc is growing +17.7% versus a year earlier (3y avg +8.2%). How much revenue grew versus a year earlier (YoY). The 3-year average next to it puts the single year in context.
How fast are earnings growing at Corero Network Security plc (DDOSF)?
Earnings per share at Corero Network Security plc are growing +121% versus a year earlier. How much earnings per share grew versus a year earlier.
How much free cash flow does Corero Network Security plc (DDOSF) generate?
The free cash flow of Corero Network Security plc is −$1.4M (fiscal year 2025). The cash truly left after running and investing in the business, this is what pays dividends and buybacks.
Free · no account needed

Watch Corero Network Security plc in the live analysis

One click puts Corero Network Security plc on your watchlist: fair value and trend at a glance, plus comparison, the diversification check and the 35,000+ stock screener. You can also try 14 days of Pro there, no card.

Watch for free →

Zero risk: nothing is ever charged. Your watchlist is yours, with or without an account.