Shares of Snap were rising Tuesday morning after news the founders of Instagram, which has successfully copied so many of its features, are leaving their company. Plus Inspire Brands, the owner of Arby's and Buffalo Wild Wings is acquiring burger maker Sonic for $2.3 billion. And Starbucks is laying off workers amid a broad corporate restructuring, and Match Group's Tinder is testing a new security feature to give women more control of the app.