shares of iron mountain inc irm slid 039 to 5854 tuesday on what proved to be an allaround favorable trading session for the stock market with the sp 500 index spx rising 067 to 443926 and the dow jones industrial average djia rising 093 to 3426142 iron mountain inc closed 028 below its 52week high 5882 which the company achieved on july 10th the stock underperformed when compared to some of its competitors tuesday as prologis inc pld rose 116 to 12322 international business machines corp ibm rose 116 to 13444 and digital realty trust inc dlr rose 211 to 11642 trading volume 13 m remained 82013 below its 50day average volume of 14 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