Fortinet stock fell sharply on October 29, 2026. Revenue forecasts were bleak, and sales growth was sluggish. Service sales grew by 13%, the lowest in years. This led to a sharp two-day fall 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 highlights difficult circumstances in the software sector. Other companies like ServiceNow are also facing difficulties.