Benzinga's Top Pre-Market Gainers

Carnival CCL added 1.94% to $37.80 in the pre-market session. Carnival's PEG ratio is 1.35. Zynga ZNGA surged 1.72% to $2.37 in the pre-market session. Zynga shares have dropped 76.10% over the past 52 weeks, while the S&P 500 index has gained 12.74% in the same period. Research In Motion RIMM soared 1.70% to $10.78 in the pre-market trading. Research In Motion's trailing-twelve-month revenue is $12.59 billion. Boston Scientific BSX moved up 0.87% to $5.81 in the pre-market session. Boston Scientific's trailing-twelve-month operating margin is 13.48%.