Fortinet Inc
Fortinet Inc (FTNT) Options Open Interest
FTNT options open interest is 145,769 contracts. The 2-week average daily volume is 7,696 contracts across the chain.
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Monitoring FTNT open interest helps you see where real money is positioned on Fortinet Inc's options and which strikes are attracting the most commitment from traders. Fortinet Inc's open interest reflects the total number of outstanding contracts that have not been closed or exercised, making it a powerful gauge of liquidity, conviction, and potential support and resistance zones. Use our scanner to monitor FTNT options open interest in real time and find the strikes that matter.
Open interest is distinct from volume: volume counts how many contracts are traded in a session, while open interest counts how many remain open at the end of the day. Rising FTNT options open interest alongside rising volume suggests new positions are being built, while falling open interest signals positions are being closed. Heavy open interest at specific strikes often acts as a magnet near expiration and can hint at where dealers and large traders expect Fortinet Inc to settle.
Fortinet, Inc. provides broad, integrated, and automated cybersecurity solutions in the Americas, Europe, the Middle East, Africa, and the Asia Pacific. It offers FortiGate hardware and software licenses that provide various security and networking functions, including firewall, intrusion prevention, anti-malware, virtual private network, application control, web filtering, anti-spam, and wide area network acceleration. The company also provides FortiSwitch product family that offers secure switching solutions for connecting customers their end devices; FortiAP product family, which provides secure wireless networking solutions; FortiExtender, a hardware appliance; FortiAnalyzer product family, which offers centralized network logging, analyzing, and reporting solutions; and FortiManager product family that provides central and scalable management solution for its FortiGate products.
It offers FortiWeb product family provides web application firewall solutions; FortiMail product family that secure email gateway solutions; FortiSandbox technology that delivers proactive detection and mitigation services; FortiClient that provides endpoint protection with pattern-based anti-malware, behavior-based exploit protection, web-filtering, and an application firewall; FortiToken and FortiAuthenticator product families for multi-factor authentication to safeguard systems, assets, and data; and FortiEDR/XDR, an endpoint protection solution that provides both comprehensive machine-learning anti-malware execution and real-time post-infection protection. It provides security subscription, technical support, professional, and training services. It sells its security solutions to channel partners and directly to various customers in telecommunications, technology, government, financial services, education, retail, manufacturing, and healthcare industries. It has strategic alliance with Linksys. Fortinet, Inc. was incorporated in 2000 and is headquartered in Sunnyvale, California.
Pin risk into expiration, dealer positioning, liquidity checks for large orders — all of it starts with knowing where FTNT open interest is concentrated. Our scanner maps Fortinet Inc's open interest across every strike and expiry, flags unusual buildups, and lets you drill into the contracts that institutional money is actually holding. Trade Fortinet Inc's options open interest as the signal it is, not as an afterthought.
| 180.00 | 1.43 | 1.85 | 1.64 | 43% | +0.2744 | 592 |
| 190.00 | 0.09 | 0.67 | 0.38 | 46% | +0.0792 | 229 |
| 185.00 | 0.71 | 1.14 | 0.93 | 47% | +0.1642 | 204 |
| 165.00 | 8.75 | 11.45 | 10.10 | 50% | +0.7825 | 126 |
| 170.00 | 5.45 | 7.00 | 6.23 | 45% | +0.6451 | 89 |
| 177.50 | 5.40 | 7.55 | 6.48 | 45% | -0.6321 | 557 |
| 140.00 | — | 0.25 | 0.25 | 87% | -0.0302 | 368 |
| 150.00 | 0.05 | 0.07 | 0.06 | 50% | -0.0142 | 110 |
| 162.50 | 0.38 | 0.74 | 0.56 | 42% | -0.1149 | 110 |
| 165.00 | 0.38 | 1.43 | 0.91 | 41% | -0.1719 | 110 |
As of September 25, 2026
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