Shares of Iron Mountain Inc. /zigman2/quotes/208929343/composite IRM +0.60% inched 0.67% higher to $44.78 Wednesday, on what proved to be an all-around favorable trading session for the stock market, with the S&P 500 Index /zigman2/quotes/210599714/realtime SPX +0.60% rising 0.95% to 4,395.64 and the Dow Jones Industrial Average /zigman2/quotes/210598065/realtime DJIA +0.45% rising 1.00% to 34,258.32. This was the stock's second consecutive day of gains. Iron Mountain Inc. closed $4.80 short of its 52-week high ($49.58), which the company achieved on September 3rd.
The stock demonstrated a mixed performance when compared to some of its competitors Wednesday, as Fiserv Inc. /zigman2/quotes/204817680/composite FISV +0.53% rose 2.33% to $108.69, Automatic Data Processing Inc. /zigman2/quotes/207661132/composite ADP +0.37% rose 0.64% to $198.31, and Equifax Inc. /zigman2/quotes/208789454/composite EFX +0.81% rose 1.27% to $262.68. Trading volume (1.8 M) eclipsed its 50-day average volume of 1.4 M.