Fortinet stock took a sharp downturn on October 29, 2026. Financial projections were disappointing, and product growth slowed. Service revenue growth hit 13%, the weakest in several 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 shows tough times in the software sector. Other companies like ServiceNow are also facing difficulties.