

Fortinet vs Zscaler
Global cybersecurity company offering firewalls and cloud security services vs Cloud security company replacing older network hardware. Which is the better buy for your portfolio in August 2026? Plain-English answer below.
Fortinet built its network security empire on purpose-built hardware and a tightly integrated operating system, while Zscaler went all-in on a cloud-native zero trust architecture that routes traffic through its global network of data centers. Both companies chase enterprise security budgets as organizations move workloads off-premises and cyber threats grow more sophisticated. In Fortinet vs Zscaler, readers cut through the vendor narratives to see how each company's growth rate, gross margins, free cash flow, and competitive positioning compare as the enterprise security market continues to consolidate.
Fortinet built its network security empire on purpose-built hardware and a tightly integrated operating system, while Zscaler went all-in on a cloud-native zero trust architecture that routes traffic ...
Why It’s Moving

Fortinet is gaining momentum on AI security expansion and strong post-earnings demand trends.
- Fortinet’s latest catalyst came from an Aug. 17 AI-security acquisition, signaling management is still investing to extend its platform into fast-growing AI protection and keep the product story fresh.
- Recent post-earnings commentary has focused on accelerating demand across Fortinet’s security portfolio, with stronger hardware, SASE, and recurring revenue trends reinforcing the view that growth is broadening beyond one-off spending.
- The stock has also been supported by the company’s recent second-quarter beat and raised full-year outlook, which gave investors more confidence that current momentum can carry into the second half of 2026.

Zscaler is gaining momentum as Wall Street leans harder into its SASE growth story
- Analysts lifted their outlook on Zscaler after recent coverage pointed to stronger positioning in the fast-growing SASE market, reinforcing the idea that investors are paying up for durable cybersecurity demand.
- KeyBanc and Mizuho both raised their price targets this week, while Stifel also turned more constructive, signaling that Wall Street sees improving confidence in Zscaler’s growth trajectory.
- The company’s recent recognition as a leader in Gartner’s SASE and SSE categories added to the bullish backdrop, helping support the narrative that Zscaler remains a top-tier name in cloud security.

Fortinet is gaining momentum on AI security expansion and strong post-earnings demand trends.
- Fortinet’s latest catalyst came from an Aug. 17 AI-security acquisition, signaling management is still investing to extend its platform into fast-growing AI protection and keep the product story fresh.
- Recent post-earnings commentary has focused on accelerating demand across Fortinet’s security portfolio, with stronger hardware, SASE, and recurring revenue trends reinforcing the view that growth is broadening beyond one-off spending.
- The stock has also been supported by the company’s recent second-quarter beat and raised full-year outlook, which gave investors more confidence that current momentum can carry into the second half of 2026.

Zscaler is gaining momentum as Wall Street leans harder into its SASE growth story
- Analysts lifted their outlook on Zscaler after recent coverage pointed to stronger positioning in the fast-growing SASE market, reinforcing the idea that investors are paying up for durable cybersecurity demand.
- KeyBanc and Mizuho both raised their price targets this week, while Stifel also turned more constructive, signaling that Wall Street sees improving confidence in Zscaler’s growth trajectory.
- The company’s recent recognition as a leader in Gartner’s SASE and SSE categories added to the bullish backdrop, helping support the narrative that Zscaler remains a top-tier name in cloud security.
Investment Analysis

Fortinet
FTNT
Pros
- Fortinet offers a broad range of endpoint security services across on-premises, cloud, and IoT devices, positioning it well in diverse cybersecurity markets.
- The company's stock rose 26% over the past year, outperforming Zscaler and indicating investor confidence and relative stability.
- Fortinet has a solid financial profile with a P/E ratio around 31 and healthier valuation multiples than Zscaler, suggesting more balanced investor expectations.
Considerations
- Fortinet faces stiff competition from cloud-native cybersecurity providers like Zscaler, which may pressure growth in some segments.
- The company's exposure to cyclical IT spending and macroeconomic uncertainties could impact future revenue momentum.
- Fortinet’s growth rate and innovation pace may lag behind rapidly scaling, more specialized cloud firms, limiting its upside.

Zscaler
ZS
Pros
- Zscaler has demonstrated strong revenue growth, with 23% annual increases and significant billings growth, signalling robust demand for its zero-trust cloud-native security.
- Its positioning as a leader in cloud-native SASE solutions underpins a strong competitive moat in fast-growing cybersecurity niches.
- The company’s expanding margins and improving free cash flow forecast potential profitability improvements, enhancing long-term financial health.
Considerations
- Zscaler trades at a very high valuation with a forward P/E near 76 and price-to-sales ratio around 16, implying elevated investor expectations and valuation risk.
- Its stock exhibits higher volatility compared to Fortinet, indicating potentially greater risk for investors.
- Despite growth, recent stock performance has been mixed with some declines and forecasts suggesting possible short-term price corrections.
next-earnings-date-heading
Fortinet’s next earnings release is expected on November 4, 2026, based on its historical reporting pattern. The report should cover fiscal Q3 2026. This timing is consistent with the company’s usual late-October to early-November earnings cycle.
next-earnings-date-heading
Zscaler’s next earnings date is September 3, 2026. The report will cover fourth quarter fiscal 2026 results. The company has confirmed it will release earnings after the market closes that day, with the conference call scheduled for later in the afternoon.
next-earnings-date-heading
Fortinet’s next earnings release is expected on November 4, 2026, based on its historical reporting pattern. The report should cover fiscal Q3 2026. This timing is consistent with the company’s usual late-October to early-November earnings cycle.
next-earnings-date-heading
Zscaler’s next earnings date is September 3, 2026. The report will cover fourth quarter fiscal 2026 results. The company has confirmed it will release earnings after the market closes that day, with the conference call scheduled for later in the afternoon.
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