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