shares of iron mountain inc irm sank 060 to 5471 tuesday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 112 to 414558 and dow jones industrial average djia falling 069 to 3305551 this was the stocks second consecutive day of losses iron mountain inc closed 250 short of its 52week high 5721 which the company achieved on february 2nd the stock demonstrated a mixed performance when compared to some of its competitors tuesday as prologis inc pld fell 056 to 12354 international business machines corp ibm rose 053 to 12818 and digital realty trust inc dlr fell 118 to 9043 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