Benzinga's Top Pre-Market NASDAQ Losers (PRXL, SWSH, ANAD, CTSH)

PAREXEL International Corporation PRXL dipped 20.39% to $21.51 in the pre-market session. PRXL lowered its profit and revenue guidance for fiscal 2011. Swisher Hygiene Inc SWSH fell 8.28% to $7.98 in the pre-market session. SWSH acquired ProClean of Arizona Inc. ANADIGICS Inc ANAD moved down 5.15% to $3.50 in the pre-market session. ANAD issued weaker-than-expected Q2 projections. Cognizant Technology Solutions Corp CTSH dropped 3.30% to $79.50 in the pre-market trading. CTSH reported in-line Q1 revenue. Read more from Benzinga's Markets.