Is It Time To Reassess Fortinet (FTNT) After Recent Cybersecurity Sector Weakness?

Simply Wall St

Tue, February 24, 2026 at 10:10 AM GMT+9 6 min read

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FTNT

-5.50%

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If you are trying to figure out whether Fortinet's current share price offers value or not, you are in the right place for a clear, valuation-focused look at the stock.

Fortinet last closed at US$75.60, with returns of an 11.6% decline over 7 days, a 7.4% decline over 30 days, a 2.9% decline year to date, a 30.4% decline over 1 year, 26.8% over 3 years and 118.2% over 5 years, which can change how investors think about both its potential and its risks.

Recent headlines around Fortinet have focused on the broader cybersecurity sector and shifting sentiment toward security spending, which can influence how investors interpret these price moves. Sector-wide news can amplify share price swings, so it is useful context before you look closely at what the stock might be worth on its own numbers.

Simply Wall St's valuation model gives Fortinet a value score of 4 out of 6. Next we will look at how different valuation approaches arrive at that result, before finishing with an even more complete way to think about what the company might be worth.

Find out why Fortinet’s -30.4% return over the last year is lagging behind its peers.

Approach 1: Fortinet Discounted Cash Flow (DCF) Analysis

A DCF model takes projected future cash flows, discounts them back to today using a required rate of return, and adds them up to estimate what a company might be worth right now.

For Fortinet, the model uses a 2 Stage Free Cash Flow to Equity approach based on cash flow projections. The latest twelve month free cash flow is about $2.23b. Analyst inputs and subsequent extrapolations point to projected free cash flow of $3.98b in 2030, with interim years such as 2026 to 2035 modeled in between using a mix of analyst estimates and calculated growth rates.

When those future cash flows are discounted back, Simply Wall St arrives at an estimated intrinsic value of about $101.18 per share. Compared with the recent share price of $75.60, the DCF output suggests Fortinet trades at a 25.3% discount, which indicates that the stock appears undervalued according to this model.

Result: UNDERVALUED

Our Discounted Cash Flow (DCF) analysis suggests Fortinet is undervalued by 25.3%. Track this in your watchlist or portfolio, or discover 56 more high quality undervalued stocks.

FTNT Discounted Cash Flow as at Feb 2026

Head to the Valuation section of our Company Report for more details on how we arrive at this Fair Value for Fortinet.

Approach 2: Fortinet Price vs Earnings

For profitable companies like Fortinet, the P/E ratio is a straightforward way to connect what you pay for each share with the earnings that back it. It helps you see how much investors are currently willing to pay for each dollar of profit.

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What counts as a normal or fair P/E depends a lot on growth expectations and risk. Higher expected earnings growth or lower perceived risk can support a higher P/E, while slower growth or higher risk tends to justify a lower one.

Fortinet currently trades on a P/E of 30.33x. That sits above the broader Software industry average of 25.41x, but below the peer group average of 47.38x. Simply Wall St also calculates a Fair Ratio of 32.21x, which is the P/E it would expect for Fortinet after factoring in elements such as its earnings growth profile, margins, industry, market cap and company specific risks.

This Fair Ratio is more tailored than a simple comparison with peers or the industry, because it adjusts for the characteristics that make Fortinet different rather than treating all companies as the same. Since the current P/E of 30.33x is below the Fair Ratio of 32.21x by more than 0.10, Fortinet screens as undervalued on this metric.

Result: UNDERVALUED

NasdaqGS:FTNT P/E Ratio as at Feb 2026

P/E ratios tell one story, but what if the real opportunity lies elsewhere? Start investing in legacies, not executives. Discover our 22 top founder-led companies.

Upgrade Your Decision Making: Choose your Fortinet Narrative

Earlier we mentioned that there is an even better way to understand valuation, so let us introduce Narratives, a simple way for you to write the story you believe about Fortinet, link that story to your own forecasts for revenue, earnings and margins, and then see what fair value those assumptions produce.

On Simply Wall St, Narratives live in the Community page and are used by millions of investors as an accessible tool that connects three pieces: your view of the business, a financial forecast, and a resulting fair value that you can compare with the current share price to help you decide whether Fortinet looks expensive or cheap on your numbers.

Because Narratives sit on real data and models, they update automatically when new news, guidance or earnings are released. This means your fair value view keeps evolving, and you can see at a glance how different investors can look at the same company and reach very different conclusions. For example, one Fortinet Narrative on the platform currently applies a fair value of about US$70.25 per share, while another applies about US$109.27.

For Fortinet, however, we’ll make it really easy for you with previews of two leading Fortinet Narratives:

Each one takes the same company data and ends up with a different fair value and investment angle. Your job is not to pick a side blindly, but to see which set of assumptions feels closer to how you see Fortinet.

🐂 Fortinet Bull Case

Fair value in this narrative: US$99.03 per share

Implied discount to this fair value at the last close of US$75.60: about 23.7% undervalued using ((99.03 - 75.60) / 99.03)

Revenue growth assumption: 12.0%

Focuses on Fortinet's profitability profile, highlighting GAAP operating margin of 30.3%, net profit margin of 29.3%, and a trailing profit margin of 30.6% supported by an organic growth model.

Frames the current P/E of around 40x TTM earnings as lower than Fortinet's 10 year historical average P/E of 140x, which the author sees as a more reasonable entry point for a highly profitable business.

Emphasizes strong free cash flow, founder led engineering, proprietary ASIC architecture, and an integrated platform, while flagging hardware reliance and past security vulnerabilities as key risks to monitor.

🐻 Fortinet Bear Case

Fair value in this narrative: US$70.25 per share

Implied premium to this fair value at the last close of US$75.60: about 7.6% overvalued using ((75.60 - 70.25) / 70.25)

Revenue growth assumption: 9.80%

Highlights pressure on a hardware centric model as customers move toward cloud native security and platform consolidation, which the author sees as a headwind for pricing power and long term revenue growth.

Points to rising compliance and regulatory costs, plus intense competition in unified threat intelligence, as potential drags on margins and the ability to retain large enterprise clients.

Builds a fair value of US$70.25 per share around bearish analyst assumptions on revenue, margins, and a future P/E of 34.2x, and encourages you to test those inputs against your own expectations for Fortinet.

Seeing both sides like this can help you decide which story lines up better with your own view of Fortinet’s business, risks, and the price you are comfortable paying.

Curious how numbers become stories that shape markets? Explore Community Narratives

Do you think there’s more to the story for Fortinet? Head over to our Community to see what others are saying!

NasdaqGS:FTNT 1-Year Stock Price Chart

_ This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned._

Companies discussed in this article include FTNT.

Have feedback on this article? Concerned about the content? Get in touch with us directly._ Alternatively, email editorial-team@simplywallst.com_

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