Palo Alto Networks Shares Surge As It Joins S&P 500: Who Is It Replacing? - Planet Fitness  ( NYSE:PLNT ) , DISH Network  ( NASDAQ:DISH ) , Schrodinger  ( NASDAQ:SDGR ) , Doximity  ( NYSE:DOCS ) , CarGurus  ( NASDAQ:CARG ) , SPDR S&P 500  ( ARCA:SPY ) , Cutera  ( NASDAQ:CUTR ) , Palo Alto Networks  ( NASDAQ:PANW )