Benzinga's Top Pre-Market Gainers

Rackspace Hosting Inc RAX added 9.47% to $2.45 in the pre-market session. RAX posted upbeat Q4 profit. Magic Software Enterprises Ltd MGIC surged 6.64% to $7.39 in the pre-market session. MGIC posted a 60% y/y rise in its 2011 net income. Cabot Microelectronics Corporation CCMP moved up 6.05% to $54 in the pre-market session. CCMP declared a special cash dividend of $15 per share. A123 Systems Inc AONE soared 3.29% to $2.20 in the pre-market trading. AONE shares have dipped 78.13% over the past 52 weeks, while the S&P 500 index has gained 1.79% in the same period.