shares of iron mountain inc irm shed 200 to 4839 tuesday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 034 to 452003 and dow jones industrial average djia falling 076 to 3510000 this was the stocks second consecutive day of losses iron mountain inc closed 119 below its 52week high 4958 which the company reached on september 3rd the stock demonstrated a mixed performance when compared to some of its competitors tuesday as fiserv inc fisv fell 057 to 11500 automatic data processing inc adp fell 248 to 20223 and equifax inc efx fell 147 to 27419 trading volume 20 m eclipsed its 50day average volume of 15 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