shares of plug power inc plug shed 405 to 1255 thursday on what proved to be an allaround poor trading session for the stock market with the nasdaq composite index comp falling 218 to 1047612 and dow jones industrial average djia falling 105 to 3302749 plug power inc closed 1950 below its 52week high 3205 which the company reached on april 4th the stock demonstrated a mixed performance when compared to some of its competitors thursday as air products  chemicals inc apd fell 060 to 31260 procter  gamble co pg rose 023 to 15219 and ballard power systems inc bldp fell 465 to 492 trading volume 173 m remained 398478 below its 50day average volume of 177 m editors note this story was autogenerated by automated insights an automation technology provider using data from dow jones and factset see our market data terms of use