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Fortinet FTNT and Cisco Sytems CSCO are well-established players in the network security market. Both offer enterprise-grade cybersecurity solutions and network infrastructure, with Fortinet focused purely on security and Cisco blending security with broader networking products.
Per the Mordor Intelligence report, the network security market size is estimated at $24.95 billion in 2025. It is expected to witness a CAGR of 11.47% over the forecast period 2025-2030, reaching $42.93 billion by 2030. Both FTNT and CSCO are well-positioned to take advantage of this strong growth in the network security market.
Let’s take a closer look at the fundamentals of the two stocks to determine which one has the greater upside potential.
The Case for FTNT Stock
Fortinet continued to demonstrate strong momentum in network security during the first quarter of 2025, underscored by its leadership in firewall deployments and secure networking. The company maintained its position as the most deployed firewall vendor globally and recorded double-digit growth in FortiGate hardware revenues, driven by early adoption from large enterprise customers upgrading their infrastructure.
A key driver of Fortinet’s performance has been the expansion of its unified Secure Access Service Edge (SASE) platform. In the first quarter, the company reported 18% year-over-year growth in unified SASE billings, with large enterprise SD-WAN penetration reaching 73% and FortiSASE adoption rising nearly 10 percentage points quarter over quarter. Fortinet remains the only vendor to organically develop all core SASE capabilities within a single operating system, FortiOS, improving user experience while reducing complexity and costs.
The launch of the FortiGate 700G series has been strengthening Fortinet’s competitive edge, delivering 5x to 10x performance over rivals through its proprietary FortiASIC technology. Notable customer wins so far include eight-figure SASE deployments with government and education sectors, and seven-figure SD-WAN deals with multinational enterprises.
Fortinet has also been showcasing growing traction with its sovereign SASE solution, tailored for highly regulated sectors, such as finance and healthcare. This offering ensures full on-premise or in-country data control, addressing compliance needs without compromising performance. As a result, Fortinet’s secure networking business is continuing to gain market share, supported by high performance and a unified approach to security.
The Case for CSCO Stock
Cisco’s network security business delivered strong results in the third quarter of fiscal 2025, supported by product innovation and growing customer demand. Security orders rose in the high double digits year over year, with notable contributions from Splunk, SASE, and new offerings like Secure Access, XDR, and Hypershield. The company added more than 370 new customers across these platforms. Most Hypershield customers bundled the product with Cisco’s N9300 Smart Switch, taking advantage of Cisco’s ability to embed security directly into the network fabric.
Cisco has also been benefitting from continued strength in its enterprise networking portfolio. Strong partnerships, such as those with Nvidia, has been enabling Cisco to expand AI-ready secure infrastructure across public and private sector clients globally, reinforcing its position as a trusted partner in sovereign and enterprise cloud builds.
Despite this momentum, Cisco’s networking growth has been facing tough comparisons and remains below historical peaks. While AI infrastructure orders exceeded $600 million in the fiscal third quarter, most revenues have yet to flow through. Additionally, Cisco acknowledged some uncertainty tied to tariffs and macroeconomic conditions. The company noted that future tariff changes could impact margins and that current demand trends remain subject to variability, particularly in global public sector and enterprise deployment timing.
