shares of iron mountain inc irm inched 023 higher to 4737 friday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 093 to 396163 and dow jones industrial average djia falling 043 to 3189929 this was the stocks second consecutive day of gains iron mountain inc closed 1124 short of its 52week high 5861 which the company reached on april 21st the stock demonstrated a mixed performance when compared to some of its competitors friday as fiserv inc fisv rose 070 to 9987 automatic data processing inc adp rose 103 to 22034 and equifax inc efx rose 014 to 20085 trading volume 14 m remained 301956 below its 50day average volume of 17 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