Afternoon Gainers; Changyou.com up 12%

Changyou.com CYOU +11.87% - hearing the company was initiated with Overweight at Barclays. C&J Energy Services CJES +11.42% following the Complete Production Services acquisition. K12 LRN +11.01% despite of reporting worse than expected earnings on Friday night. Newpark Resources NR 10.95% following the strength in the sector. Stillwater Mining SWC +10.55% recovering from Friday's sell-off.