15 Biggest Mid-Day Gainers For Friday

NII Holdings, Inc. NIHD shares climbed 76.6 percent to $0.926.
Deckers Outdoor Corp DECK shares jumped 18 percent to $66.70 after the company posted a surprise profit for its fourth quarter and issued a strong forecast.
Nutanix Inc NTNX surged 13.6 percent to $19.95 after the company reported better-than-expected results for its third quarter and issued a strong outlook for the current quarter.
AmTrust Financial Services Inc AFSI shares climbed 12.8 percent to $14.05 as the company disclosed that it will receive $300 million of common equity capital from private placement.
Star Bulk Carriers Corp. SBLK shares rose 9.6 percent to $8.55.
Amphastar Pharmaceuticals Inc AMPH shares gained 9 percent to $16.85.
Veeva Systems Inc VEEV shares surged 8.8 percent to $67.14 after the company reported upbeat results for its first quarter and issued a strong guidance. Bank of America upgraded Veeva from Neutral to Buy.
500.com Ltd WBAI gained 8.2 percent to $9.48 as the company reported the purchase of The Multi Group for $56 million.
Infinera Corp. INFN rose 6.8 percent to $10.15. Wells Fargo upgraded Infinera from Market Perform to Outperform.
8x8, Inc. EGHT shares gained 6.7 percent to $14.02 after the company reported upbeat earnings for its latest quarter.
Vedanta Ltd (ADR) VEDL shares climbed 6 percent to $15.40 after gaining 4.15 percent on Thursday.
Ulta Beauty Inc ULTA gained 4.2 percent to $305.39 after the company reported upbeat results for its first quarter and raised its FY17 outlook.
Ormat Technologies, Inc. ORA gained 2.6 percent to $59.72. Barclays upgraded Ormat Technologies from Underweight to Equal-Weight.
Norwegian Cruise Line Holdings Ltd NCLH climbed 2.5 percent to $51.95. Wedbush upgraded Norwegian Cruise Line from Neutral to Outperform.
Costco Wholesale Corporation COST rose 2.3 percent to $178.73 after the company reported better-than-expected earnings for its third quarter.