Fortinet stock fell sharply 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 big two-day drop in the stock price. Barron's all reported the decline. BofA Securities lowered its rating on Fortinet, adding to concerns. The stock's drop indicates challenging conditions in the software sector. Other companies like ServiceNow are also facing difficulties.