Benzinga's Top Pre-Market NASDAQ Losers (AMSC, OPTR, CIEN, GOLD)

American Superconductor Corporation AMSC dipped 43.33% to $14.10 in the pre-market session. AMSC projects a loss and lower revenue for its fiscal fourth quarter and forecast lower-than-expected earnings for the full year. Optimer Pharmaceuticals Inc OPTR lost 2.17% to $13.50 in the pre-market session. The Food and Drug Administration (FDA) panel recommended approval for OPTR's antibiotic Dificid. Ciena Corporation CIEN moved down 1.09% to $26.26 in the pre-market session. CIEN's PEG ratio is 20.82. Randgold Resources Limited GOLD fell 1.00% to $86.96 in the pre-market trading. Randgold's trailing-twelve-month ROE is 6.84%. Read more from Benzinga's Markets.