Morning Market Losers

XenoPort, Inc. (NASDAQ: XNPT) shares dipped 22.14 percent to $5.24. XenoPort reported positive Phase 2 study results for XP23829 as a potential treatment for patients with psoriasis. Shiloh Industries, Inc. (NASDAQ: SHLO) shares dropped 21.03 percent to $8.10. Shiloh Industries reported Q3 adjusted earnings of $0.11 per share on sales of $275.2 million.Unilife Corp (NASDAQ: UNIS) declined 10.61 percent to $1.18. Unilife reported Q1 adjusted loss of $0.16 per share. The company announced plans to cut 17 percent of workforce and lower its operating expenses in 2016.China XD Plastics Co Ltd (NASDAQ: CXDC) shares slipped 6.40 percent to $6.04 after the company issued a business update and an adjustment to its financial outlook for the full year.Sonic Corporation (NASDAQ: SONC) shares dropped 6.13 percent to $25.93. Sonic reported a 4.9 percent gain in its Q4 system-wide same store sales. Raptor Pharmaceutical Corp. (NASDAQ: RPTP) shares fell 4.77 percent to $7.16. Citigroup downgraded Raptor Pharmaceutical from Buy to Hold. Vodafone Group Plc (ADR) (NASDAQ: VOD) shares slipped 2.37 percent to $33.48 after declining 1.15 percent on Monday. Yahoo! Inc. (NASDAQ: YHOO) shares dropped 2.16 percent to $29.67 after falling 3.53 percent on Monday.