Fortinet Earnings Call Highlights Growth, Margins, and Confidence

Fortinet ((FTNT)) has held its Q4 earnings call. Read on for the main highlights of the call.

Fortinet’s Earnings Call Balances Strong Growth With Manageable Headwinds

Fortinet’s latest earnings call was marked by a distinctly upbeat tone, with management emphasizing robust top-line momentum, accelerating product growth, and continued leadership in secure networking and Unified SASE. Executives underscored record profitability, strong cash generation, and aggressive capital returns, while downplaying a set of largely operational headwinds—ranging from higher memory costs to timing issues in services revenue and some quarterly volatility in security operations billings. Overall, the message was one of confident execution and durable demand that, in management’s view, more than offsets near-term cost and timing pressures.

Strong Q4 Billings and Revenue Growth

Fortinet closed 2025 with a solid Q4, posting total billings of $2.37 billion, up 18% year over year, and revenue of $1.91 billion, up 15%. This performance underscores sustained demand across the portfolio and reinforces the company’s ability to convert backlog and pipeline into recognized revenue. The gap between billings and revenue growth also suggests a healthy forward demand profile, which is critical for investors tracking the durability of Fortinet’s growth into 2026.

Product Revenue Acceleration

A major highlight was a clear acceleration in product revenue, which rose about 20% year over year to $691 million in Q4. Both hardware and software grew at roughly the same 20% rate, signaling balanced demand across the stack. For investors, this acceleration is especially important because robust product shipments today tend to lead to higher services revenue in future periods, setting up a potential second wave of growth as subscriptions and support contracts ramp.

Unified SASE Momentum

Fortinet’s Unified SASE business continues to scale rapidly, reinforcing the company’s positioning in cloud-delivered security. Unified SASE billings jumped 40% in Q4, while Unified SASE ARR climbed 11% to $1.28 billion. Notably, FortiSASE ARR grew more than 90%, reflecting strong customer adoption of its cloud-based secure access offering. This growth is strategically important as enterprises shift to hybrid work and cloud architectures, making SASE one of the key secular growth drivers in cybersecurity.

AI and Operational Technology Growth

Management highlighted growing traction in AI-driven security and operational technology (OT) solutions. AI-related security billings increased 6% in Q4 and 22% for the full year, with AI ARR up 21%. OT billings, focused on industrial and critical infrastructure environments, grew more than 25% in Q4. Together, these segments show Fortinet expanding beyond traditional perimeter security into higher-value, data- and automation-heavy use cases that could support premium pricing and stickier customer relationships over time.

Market Leadership and Share Gains

Fortinet stressed its ongoing market leadership, noting that it holds a 55% share in firewall unit shipments and delivered the highest product revenue among its security peers in the segment. Secure networking billings grew 13%, outpacing broader market growth and confirming share gains. This leadership position not only underpins pricing power and scale-driven margins but also supports cross-sell opportunities across its integrated platform.

Broad Enterprise Deal Flow and Customer Adds

Enterprise demand remained broad-based. The number of deals above $1 million increased by more than 30% in Q4, while the total value of those large deals grew more than 40%. Fortinet also added 7,200 new organizations to its Unified FortiOS platform during the quarter. The combination of rising large-deal activity and steady new-customer adds suggests that Fortinet is winning both at the high end of the market and across a wide base of smaller enterprises.

Strong Profitability and Cash Generation

Profitability metrics were a standout. Q4 non-GAAP gross margin came in at 80.3%, while non-GAAP operating margin reached 37.3%, running ahead of guidance. Free cash flow in the quarter was $577 million, with adjusted free cash flow of $589 million, representing a healthy 31% margin. These figures highlight Fortinet’s ability to balance high growth with disciplined cost management, a profile that appeals to investors seeking both expansion and earnings quality.

Record Full-Year Financials and Rule of 45 Performance

For full-year 2025, Fortinet delivered record results: billings rose 16% to $7.55 billion and revenue increased 14% to $6.8 billion. Product revenue advanced 16%, while service revenue grew 13% to $4.58 billion. Non-GAAP gross margin reached 81.3%, and operating margin expanded 50 basis points to 35.5%, driving operating income up 16% to $2.41 billion. EPS also climbed 16% to $2.76. Importantly, the company exceeded the so-called “Rule of 45” for the sixth straight year, underscoring a rare combination of growth and profitability in the cybersecurity space.

Capital Return and Balance Sheet Actions

Fortinet used its robust cash generation to return capital to shareholders. In Q4, it repurchased approximately 730,000 shares for $57 million, and quarter-to-date, it bought back an additional 4.6 million shares for $356 million. The board approved a $1 billion increase to the share repurchase authorization, leaving roughly $1.4 billion remaining for future buybacks. These actions underscore management’s confidence in the business and provide an additional lever for enhancing EPS and shareholder returns.

Supply-Chain and Memory Price Pressure

Amid the strong results, management acknowledged supply-chain pressures, particularly higher memory and component costs. Fortinet has built up roughly six months of inventory to buffer disruptions and is implementing targeted price increases on appliances, ranging from about 5% to 20% depending on the product. While these actions may create some friction, they aim to protect margins without sacrificing competitiveness, framing the issue as an operational headwind rather than a structural threat.

Near-Term Services Revenue Lag

Despite the surge in product revenue, services growth is expected to lag in the near term. Management guided that service revenue should pick up in the second half of 2026, implying a delay between product deployments and services conversion. For investors, this dynamic is worth watching: it temporarily dampens services growth metrics but also signals a pipeline of installed product that could translate into recurring, higher-margin revenue later.

Q4 SecOps Billings Volatility

The security operations (SecOps) segment experienced some billings deceleration in Q4 compared with prior quarters, with management characterizing the line as inherently more volatile. Still, annual SecOps growth remained attractive. While the variability introduces some quarter-to-quarter noise, Fortinet framed this as a function of deal timing rather than a shift in demand, suggesting that the underlying opportunity in SecOps remains intact.

First-Quarter Timing and FX Headwinds

Management flagged some short-term technical headwinds for Q1 2026. The quarter has two fewer days than Q4 for recognizing services revenue, which will modestly pressure reported growth. Additionally, the company called out currency effects tied to recent U.S. dollar weakness as another small drag on results. These factors are more about accounting periods and FX translation than business fundamentals, but they may still influence near-term reported numbers and modeling assumptions.

Debt Repayment and Interest Income Impact

Fortinet plans to repay a $500 million senior debt tranche at the end of Q1, which will reduce net interest income for the year. Management highlighted this primarily as a consideration for financial modeling rather than a strategic concern. The move reflects balance-sheet discipline, trading a modest reduction in interest income for lower leverage and greater financial flexibility.

Product End-of-Service Dynamics

The company also discussed the lifecycle of older product and service lines approaching end-of-service. Customers in this situation may either upgrade into newer Fortinet offerings or opt for higher-supported-service fees on legacy systems. This transition can introduce some complexity and variability in customer choices and revenue timing, but it also creates potential upsell opportunities into more advanced, higher-value products across the platform.

Guidance Signals Confident 2026 Outlook

For Q1 2026, Fortinet guided billings to $1.77–$1.87 billion (around 14% growth at the midpoint) and revenue to $1.70–$1.76 billion (about 12% growth), with non-GAAP gross margin of 80–81% and operating margin of 30–32%. Non-GAAP EPS is expected between $0.59 and $0.63, alongside infrastructure investment of $80–$120 million and an 18% tax rate. For full-year 2026, the company forecast billings of $8.4–$8.6 billion (about 13% growth at the midpoint), revenue of $7.5–$7.7 billion (about 12% growth), and service revenue of $5.05–$5.15 billion (around 11% growth), with non-GAAP gross margin of 79–81% and operating margin of 33–36%. Projected non-GAAP EPS of $2.94–$3.00, infrastructure investments of $350–$450 million, and an 18% tax rate underpin guidance that assumes continued strong growth and profitability. Management reiterated expectations to achieve the Rule of 45 for the seventh consecutive year and reaffirmed midterm targets for product revenue growth of roughly 10–15% and billings and revenue CAGRs above 12%.

In sum, Fortinet’s earnings call painted a picture of a company executing well on both growth and profitability, with accelerating product demand, expanding strategic platforms like Unified SASE and OT, and a clear commitment to shareholder returns. While supply-chain costs, services timing, and some segment volatility present near-term challenges, the overarching narrative remains one of durable market leadership and confident multi-year guidance—elements likely to keep the stock in focus for investors seeking sustained growth in cybersecurity.