Gainers Groupon Inc (NASDAQ: GRPN) shares rose 21.87 percent to $2.73 in pre-market trading after the company reported stronger-than-expected results for its fourth quarter on Thursday. Glu Mobile Inc. (NASDAQ: GLUU) shares rose 5.50 percent to $3.45 in pre-market trading after gaining 8.10 percent on Thursday. SolarCity Corp (NASDAQ: SCTY) shares rose 3.90 percent to $17.32 in the pre-market trading session after dropping 10.52 percent on Thursday. Wynn Resorts, Limited (NASDAQ: WYNN) shares rose 3.53 percent to $61.80 in pre-market trading after the company reported better-than-expected earnings for its fourth quarter. FireEye Inc (NASDAQ: FEYE) shares rose 2.18 percent to $12.68 in pre-market trading. FireEye reported a narrower-than-expected loss for its fourth quarter, but the company missed analysts’ revenue estimates. The company also issued a weak earnings forecast for the current quarter.Losers Nu Skin Enterprises, Inc. (NYSE: NUS) shares fell 24.63 percent to $23.50 in pre-market trading after the company reported weaker-than-expected Q4 results and issued a downbeat forecast. Select Comfort Corp. (NASDAQ: SCSS) shares dropped 17.11 percent to $17.00 in pre-market trading after the company reported a wider-than-expected quarterly loss and issued a weak earnings forecast. Cyberark Software Ltd (NASDAQ: CYBR) shares fell 12.44 percent to $32.17 in pre-market trading. Cyberark reported better-than-expected earnings for its fourth quarter, but the company issued a weak earnings forecast. Activision Blizzard, Inc. (NASDAQ: ATVI) fell 8.75 percent to $27.85 in pre-market trading after the company reported downbeat results for its fourth quarter on Thursday. Qlik Technologies Inc (NASDAQ: QLIK) shares fell 7.31 percent to $18.00 in pre-market trading after the company announced downbeat Q4 results.