Morning Market Losers

Cardiovascular Systems Inc CSII dipped 21.83 percent to $13.00. Cardiovascular Systems reported Q1 preliminary net loss of $0.43 to $0.41 per share and revenue of $43.9 million. Bank of America downgraded Cardiovascular Systems from Neutral to Underperform. BioCryst Pharmaceuticals, Inc. BCRX shares declined 17.69 percent to $9.75 after the company reported results of Phase 1 trial of BCX7353. Ocean Rig UDW Inc ORIG shares slipped 16.18 percent to $2.20 after the company reported an update on its fleet. Harmonic Inc HLIT shares dropped 11.41 percent to $5.59 after the company lowered its Q3 sales outlook. Domino's Pizza, Inc. DPZ shares fell 5.73 percent to $101.84 after the company reported weaker-than-expected results for its fiscal third quarter. Shake Shack Inc SHAK shares declined 5.90 percent to $45.60. Shake Shack announced a 26.16 million common share offering via selling holders. Groupon Inc GRPN shares dipped 3.27 percent to $3.69 after surging 8.83 percent on Wednesday. Analysts at Cowen initiated coverage on Groupon with a Underperform rating.