DZ Bank downgraded Fortinet (FTNT) from hold to strong sell on August 1, 2026. This rating change follows a period of significant stock price appreciation.

The company recently reported second-quarter 2026 earnings that exceeded market estimates. Fortinet also raised its full-year revenue guidance, citing high demand for AI-powered security products.

Analysts cited concerns regarding the stock's high valuation despite the positive financial performance. DZ Bank suggests that current market optimism is already fully priced into the shares.