shares of plug power inc plug slipped 486 to 1058 tuesday on what proved to be an allaround poor trading session for the stock market with the nasdaq composite index comp falling 052 to 1212633 and dow jones industrial average djia falling 059 to 3340238 this was the stocks second consecutive day of losses plug power inc closed 2129 below its 52week high 3187 which the company reached on april 5th the stock underperformed when compared to some of its competitors tuesday as air products  chemicals inc apd fell 131 to 28525 procter  gamble co pg rose 048 to 15023 and ballard power systems inc bldp fell 400 to 528 trading volume 221 m eclipsed 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