Morning Market Movers

Radiant Systems Inc RADS climbed 30.35% to $27.96 at 9:45 am. NCR Corp agreed to buy RADS for $1.2 billion in cash. IsoRay Inc ISR jumped 15.32% to $1.28. ISR shares have dropped 20.14% over the past 52 weeks, while the S&P 500 index has gained 22.32% in the same period. Clean Diesel Technologies Inc CDTI shares surged 15.68% to $4.87. CDTI's trailing-twelve-month revenue is $48.12 million. Clean Energy Fuels Corp CLNE shares gained 13.64% to $14.91. CLNE shares have dropped 13.28% over the past 52 weeks, while the S&P 500 index has gained 22.32% in the same period.