Atlassian CEO Mike Cannon-Brookes. Bloomberg/Getty Images Atlassian, Twilio, and Five9 shares soar premarket as AI boosts their earnings. All three companies have previously been cited as victims of the so-called SaaSpocalypse. SaaS stocks have taken a hammering this year over fears AI will make some software obsolete. Reports of the death of SaaS may have been greatly exaggerated. Shares of software as a service companies Atlassian, Twilio, and Five9 soared in out-of-hours trading after re...