15 Best AI Stocks to Invest in According to Billionaires

7. Fortinet Inc. (NASDAQ:FTNT)

Dollar Value of Billionaire Holdings: $2.12 billion

Number of Billionaire Investors: 22

Fortinet Inc. (NASDAQ:FTNT) is one of the best AI stocks to invest in according to billionaires. On March 10, Fortinet launched FortiOS 8.0, a major update to its security operating system designed to integrate networking and security across hybrid and multi-cloud environments. Introduced at Fortinet Accelerate 2026, the new release focuses on governing the use of AI, simplifying operations with fabric-based AI agents, and introducing quantum-safe protection.

By consolidating these capabilities into a single operating system, Fortinet Inc. (NASDAQ:FTNT) aims to reduce architectural complexity while ensuring security scales alongside the rapid adoption of generative AI and cloud-first strategies. To address the risks associated with AI, FortiOS 8.0 provides real-time visibility into shadow AI and introduces AI-aware application controls that block risky actions while permitting sanctioned tools.

The update includes a Model Context Protocol to manage interactions between autonomous agents and enhanced data loss prevention that uses optical character recognition to detect sensitive data in images. Additionally, conversational AI agents have been embedded across the security fabric to assist IT teams with complex configurations and troubleshooting for firewalls and SD-WAN environments. The release also advances secure edge connectivity through next-generation SASE and future-ready cryptography.

Fortinet Inc. (NASDAQ:FTNT) provides cybersecurity and convergence of networking and security solutions worldwide.