After Hours Gainers:
Companies trading higher in after hours in reaction to earnings: AVNR +6.1%.
Companies trading higher in after hours in reaction to news: COSI +38.5% (Cosi names Carin Stutz Chief Executive Officer), YMI +23.3% (YM BioSciences Reports Updated Phase I/II Data for its JAK1/JAK2 Inhibitor CYT387 at ASH 2011; Well tolerated for dosing periods up to and exceeding two years).
NEOP +7.0% (Neoprobe Corporation licenses AstraZeneca (AZN) imaging agent for amyloid detection to aid diagnosis of Alzheimer's Disease), PXD +1.5% (Pioneer Natural Resources and Pioneer Southwest Energy Partners (PSE) announced that the Partnership has commenced a public offering of 4.4 mln common units representing limited partner interests).
After Hours Losers:
Companies trading lower in after hours in reaction to news: MWE -3.4% (MarkWest Energy announces intent to acquire remaining 49% interest in Liberty joint venture, increases 2012 DCF and growth capital expenditure guidance, and announces utica joint venture; announces public offering of common units), ST -2.1% (Sensata Tech lowers guidance).






