Benzinga's Top Pre-Market Losers

Tellabs (NASDAQ: TLAB) shares dropped 27.51% to $2.53 in pre-market trading. Tellabs' PEG ratio is -34.90.

Alexza Pharmaceuticals (NASDAQ: ALXA) shares fell 13.64% to $5 in the pre-market trading. Alexza Pharmaceuticals reported that the U.S. health regulators approved ADASUVE® Inhalation Powder for the acute treatment of agitation associated with schizophrenia or bipolar I disorder in adults.

Pioneer Natural Resources Co (NYSE: PXD) dipped 4.56% to $103.83 in the pre-market session. Pioneer Natural Resources has a dividend yield of 0.10%.

Quanta Services (NYSE: PWR) dipped 3.95% to $26.51 in the pre-market session. Quanta Services' trailing-twelve-month profit margin is 4.46%.

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