Key TakeawaysEPAM Systems shares surged nearly 15% Thursday, delivering the top daily performance in the S&P 500. The company reported third-quarter earnings that topped estimates and raised its full-year outlook.Despite Thursday's gains, shares remained lower for the year. EPAM Systems (EPAM) shares jumped close to 15% Thursday, delivering the top daily performance in the S&P 500 after the company reported earnings that topped estimates and raised its full-year outlook. EPAM posted third-quarter revenue of ...