

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 September 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 moving on mixed analyst calls and fresh concerns over firewall demand
- Analyst sentiment has stayed mixed, with the latest consensus still sitting at Hold, suggesting investors are waiting for clearer proof that Fortinet’s growth can reaccelerate.
- Shares have been reacting to a recent downgrade that highlighted softer-than-expected firewall refresh demand, raising questions about how quickly replacement cycles can offset slowing spending.
- At the same time, Fortinet has continued to post strategic wins — including a new high school cybersecurity curriculum, a federal certification milestone, and an AI-focused acquisition — which helps support the long-term growth story even as near-term sentiment remains cautious.

Zscaler is in the spotlight as investors brace for its next earnings update and a fresh read on cloud-security demand.
- Investors are waiting for Zscaler’s fiscal Q4 2026 results on September 3, which puts the stock in a classic pre-earnings setup where expectations and guidance matter more than the print itself.
- Analysts are modeling continued revenue growth of roughly 22% year over year, suggesting the market is focused on whether Zscaler can keep scaling while protecting margins.
- Recent commentary has highlighted the company’s fundamentals even as sentiment has been mixed, with one major theme being whether demand for AI-era cloud security can offset broader market caution around rates and risk assets.

Fortinet is moving on mixed analyst calls and fresh concerns over firewall demand
- Analyst sentiment has stayed mixed, with the latest consensus still sitting at Hold, suggesting investors are waiting for clearer proof that Fortinet’s growth can reaccelerate.
- Shares have been reacting to a recent downgrade that highlighted softer-than-expected firewall refresh demand, raising questions about how quickly replacement cycles can offset slowing spending.
- At the same time, Fortinet has continued to post strategic wins — including a new high school cybersecurity curriculum, a federal certification milestone, and an AI-focused acquisition — which helps support the long-term growth story even as near-term sentiment remains cautious.

Zscaler is in the spotlight as investors brace for its next earnings update and a fresh read on cloud-security demand.
- Investors are waiting for Zscaler’s fiscal Q4 2026 results on September 3, which puts the stock in a classic pre-earnings setup where expectations and guidance matter more than the print itself.
- Analysts are modeling continued revenue growth of roughly 22% year over year, suggesting the market is focused on whether Zscaler can keep scaling while protecting margins.
- Recent commentary has highlighted the company’s fundamentals even as sentiment has been mixed, with one major theme being whether demand for AI-era cloud security can offset broader market caution around rates and risk assets.
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.
Fortinet (FTNT) Next Earnings Date
Fortinet’s next earnings release is expected on November 4, 2026, based on its typical reporting pattern. The upcoming report should cover Q3 2026. This is the currently estimated date; the company has not yet formally confirmed it.
Zscaler (ZS) Next Earnings Date
The next earnings date for ZS is expected on November 24, 2026. It will cover fiscal first quarter 2027 results. This date is currently the estimated release based on Zscaler’s historical reporting pattern.
Fortinet (FTNT) Next Earnings Date
Fortinet’s next earnings release is expected on November 4, 2026, based on its typical reporting pattern. The upcoming report should cover Q3 2026. This is the currently estimated date; the company has not yet formally confirmed it.
Zscaler (ZS) Next Earnings Date
The next earnings date for ZS is expected on November 24, 2026. It will cover fiscal first quarter 2027 results. This date is currently the estimated release based on Zscaler’s historical reporting pattern.
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