Shares of Fortinet were down as much as 27.4% in Thursday action, which would have made for their worst performance on record, though they ended down 22%. That finish marked the stock's steepest ...

Shares of cloud security platform Zscaler (NASDAQ:ZS) fell 7.1% in the afternoon session after industry bellwether, Fortinet, ...

Shares of Fortinet were off 25.7% in afternoon trading Thursday. That could mark their worst one-day slide on record if losses of such magnitude hold through the close. Opinion: AI bots aren't just ...

Fortinet stock popped on Q2 earnings, revenue and billings that edged by estimates while June quarter guidance roughly met ...