Fortinet (FTNT) Is Getting More Attention, What Is Behind It?
Rising cyber risk linked to AI investment and new data center build outs has pushed digital security up the board agenda, putting Fortinet (FTNT) in sharper focus for investors tracking AI infrastructure spending.
Recent trading shows Fortinet shares gaining momentum, with a 30-day share price return of 10.42% and a 90-day move of 14.38%. The year-to-date share price return of 129.48% and a 3-year total shareholder return of 208.03% point to strong longer term compounding.
Scan Fortinet's momentum compared with other cyber and AI infrastructure plays by reviewing the hand picked 90 AI infrastructure stocks shaping security around new data center build outs.
After a year like this for Fortinet, the key question is whether investors are late to the party or still early in the rerating. The valuation section is where that trade off starts to come into focus.
Most Popular Narrative: 42.3% Overvalued
Fortinet last closed at $178.72, while the most followed narrative on the stock anchors fair value closer to $125.56, which frames the recent share price surge against a much lower intrinsic estimate.
Fortinet’s current valuation undoubtedly prices in a lot of future perfection, making it an expensive stock by traditional metrics. As of mid-July 2026, the stock trades at a Price-to-Earnings (P/E) ratio roughly 60x, which is a massive premium compared to the broader market and well above its recent 2024 and 2025 levels. Its Price-to-Sales (P/S) ratio tells a similar story, sitting at a lofty 16x to 18x, meaning investors are paying a steep multiple for every dollar of revenue the company brings in. While this premium reflects their explosive growth in AI infrastructure security, a P/E over 60 leaves almost zero room for error if macroeconomic conditions or spending on data centers slow down.
See why 11 investors see Fortinet as 42% overvalued.
Result: Fair Value of $125.56 (OVERVALUED)
Still, the Fortinet narrative could crack if AI data center spending cools faster than expected or if rival security platforms start winning a larger share of new deployments.
Find out about the key risks to this Fortinet narrative.
Next Steps
If the tone of this Fortinet debate feels split, that is the point. It is exactly why you should press the data yourself and move fast to shape your own view. To see what optimistic investors are focusing on, start with the 2 key rewards.
Looking for more investment ideas beyond Fortinet?
If Fortinet has sharpened your focus on security and AI, do not stop here. Broader opportunity often sits with stocks the crowd has not studied yet.
- Target resilient balance sheets and steady fundamentals by scanning the list of solid balance sheet and fundamentals (25 results) that can handle tougher conditions without breaking stride.
- Hunt for mispriced potential by reviewing the 28 high quality undervalued stocks where quality fundamentals and compressed expectations sit side by side.
- Prioritize sleep-at-night stability by checking the 31 resilient stocks with low risk scores built for investors who want fewer surprises and more consistency.
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.
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