Morning Market Losers

shares dipped 20.19 percent to $35.14 after the company said it may not re-initiate enrollment in MVAD clinical trial in November as previously expected.

shares fell 13.74 percent to $5.65 after the company lowered its FY15 guidance.

shares dropped 12.41 percent to $2.40 after the company announced redetermination of its borrowing base. Emerald Oil decreased its credit facility from $200 million to $120 million.

declined 7.36 percent to $70.08 after the company lowered its earnings forecast for 2015.

shares fell 6.63 percent to $25.08. JP Morgan downgraded JetBlue Airways from Overweight to Neutral and lowered the price target from $28.00 to $27.00.

declined 5.46 percent to $35.48 after the company reduced its adjusted profit outlook for the full year and announced plans to cut 800 to 850 jobs.

dropped 2.74 percent to $13.50. Del Frisco's Restaurant Group reported in-line Q3 earnings, but the company's sales missed analysts' estimates. The company also lowered its FY15 outlook.