Benzinga's Top #PreMarket Losers

Zogenix (NASDAQ: ZGNX ) dipped 6.32% to $4.15 in the pre-market session. Zogenix shares have jumped 221.01% over the past 52 weeks, while the S&P 500 index has gained 19.96% in the same period Ctrip.com International (NASDAQ: CTRP ) shares dropped 3.31% to $38.21 in pre-market trading. Ctrip.com's trailing-twelve-month