Benzinga's Top #PreMarket Losers

Tesla Motors (NASDAQ: TSLA ) dipped 3.05% to $135.51 in the pre-market session on concerns regarding National Highway Transportation Safety Administration investigation into fires. Windstream Holdings (NASDAQ: WIN ) shares dropped 1.16% to $8.07 in pre-market trading after Morgan Stanley downgraded the stock from Equal-weight to Underweight. Himax Technologies