Fortinet stock fell sharply on October 29, 2026. Earnings outlooks were poor, and sales growth was sluggish. Service revenue increased by 13%, the lowest in years. This led to a big two-day drop in the stock price. Investing.com Canada all reported the decline. BofA Securities lowered its rating on Fortinet, adding to concerns. The stock's drop shows tough times in the software sector. Other companies like ServiceNow are also struggling.