shares of iron mountain inc irm slumped 036 to 5207 wednesday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 070 to 389193 and dow jones industrial average djia falling 087 to 3187457 this was the stocks second consecutive day of losses iron mountain inc closed 654 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 wednesday as