Benzinga's Top Pre-Market Gainers

BCD Semiconductor Manufacturing (NASDAQ:

) added 95.98% to $7.80 in the pre-market session. Diodes (NASDAQ:

) agreed to buy BCD Semiconductor Manufacturing for around $151 million. TeleCommunication Systems (NASDAQ:

) surged 2.31% to $2.67 in the pre-market session. TeleCommunication Systems sold two of its U.S. patents to IP Cube Partners for a multi-seven-figure payment. Discover Financial Services (NYSE:

) soared 1.70% to $38.99 in the pre-market trading. Discover Financial's PEG ratio is 0.83. Research In Motion (NASDAQ:

) moved up 1.06% to $11.95 in the pre-market session. Research In Motion's trailing-twelve-month revenue is $12.59 billion.