Benzinga's Top Pre-Market NASDAQ Losers (OREX, ZSTN, SNDK, HBAN)

Orexigen Therapeutics Inc OREX dipped 2.84% to $3.08 in the pre-market session. OREX's trailing-twelve-month operating margin is -4,175.06%. ZST Digital Networks Inc ZSTN fell 1.87% to $2.63 in the pre-market session. ZSTN shares have dropped 62.20% over the past 52 weeks, while the S&P 500 index has gained 10.65% in the same period. SanDisk Corporation SNDK moved down 0.47% to $48.76 in the pre-market session. SNDK's research and development expenses increased to about $120 million, from $99 million, in the year-earlier period. Huntington Bancshares Incorporated HBAN dropped 0.15% to $6.67 in the pre-market trading. HBAN's trailing-twelve-month ROA is 0.59%. Read more from Benzinga's Markets.