Morning Market Gainers

Capnia, Inc. CAPN shares climbed 74.49% to $4.24 after the company announced the first U.S. commercial sales of CoSense. Emerson Radio Corp. MSN shares gained 36.79% to $1.45 after the company reported Q3 earnings of $0.11 per share on sales of $22.9 million. Angie's List, Inc.ANGI shares surged 33.33% to $6.52 after the company reported stronger-than-expected results for the fourth quarter. Potbelly Corporation PBPB shares jumped 10.95% to $15.76 after the company reported stronger-than-expected fourth-quarter results. Virgin America Inc. VA shares rose 9.94% to $37.62 after the company reported stronger-than-expected results for the fourth quarter. Boston Scientific Corporation BSX shares surged 9.10% to $16.19 on Johnson & Johnson JNJ settlement news. Jack in the Box Inc. JACK climbed 7.02% to $94.35 on upbeat Q1 results. Yandex N.V. YNDX shares gained 6.61% to $17.75 after the company reported Q4 adjusted earnings of $0.22 per share. Enphase Energy, Inc. ENPH shares gained 2.01% to $14.20 after the company reported better-than-expected Q4 results.