Fortinet stock suffered a significant decline on October 29, 2026. Earnings outlooks were poor, and sales growth was sluggish. Service sales grew by 13%, the smallest in a long time. This led to a sharp two-day fall in the stock price. Investing.com Canada all reported the decline. BofA Securities downgraded Fortinet, adding to concerns. The stock's drop indicates challenging conditions in the software sector. Other companies like ServiceNow are also facing difficulties.