FIVN ▲ +0.8% - Five9, Inc. $FIVN - Five9 Announces Upcoming Conference Participation Five9 shares rose 0.8% today following the company's announcement that it will participate in an upcoming conference. The stock's modest gain likely reflects investor interest in the opportunity for management to discuss Five9's business strategy and outlook with institutional investors and analysts at the event. 03-SEP-2026 04:13 PM ET