Benzinga's Top Pre-Market Gainers

Merge Healthcare Incorporated

surged 8.37% to $5.05 in the pre-market session. MRGE shares have surged 29.09% over the past 52 weeks, while the S&P 500 index has dropped 2.20% in the same period. Sequenom Inc

moved up 7.77% to $4.02 in the pre-market session. Sequenom reported that various leading US healthcare providers have started ordering the Sequenom Center for Molecular Medicine's MaterniT21 laboratory-developed test for their patients. Schlumberger NV

soared 4.32% to $69.80 in the pre-market trading. SLB's PEG ratio is 0.78. Cablevision Systems Corporation

added 3.14% to $13.15 in the pre-market session. CVC announced the resignation of its chief operating officer, Tom Rutledge.