Benzinga's Top Pre-Market Gainers

ARM Holdings plc ARMH moved up 2.53% to $37.33 in the pre-market session. ARM Holdings' PEG ratio is 1.73. Zynga ZNGA surged 2.45% to $3.35 in the pre-market session. Zynga named former Microsoft MSFT executive Don Mattrick as its new chief executive officer. Rowan Companies plc RDC soared 1.16% to $34.82 in the pre-market trading. Rowan's trailing-twelve-month operating margin is 20.36%. CF Industries Holdings CF shares gained 1.01% to $172.00 in the pre-market session. CF shares have dropped 13.98% over the past 52 weeks, while the S&P 500 index has gained 18.02% in the same period.