DJ Iron Mountain Inc. Stock Outperforms Competitors On Strong Trading Day

This article was automatically generated by MarketWatch using technology from Automated Insights.

Shares of Iron Mountain Inc. $(IRM)$ rose 2.23% to $116.89 Monday, on what proved to be an all-around favorable trading session for the stock market, with the S&P 500 Index rising 1.49% to 7,764.70 and the Dow Jones Industrial Average rising 0.71% to 52,048.83.

This was the stock's fourth consecutive day of gains.

Iron Mountain Inc. closed 13.21% below its 52-week high of $134.68, which the company reached on June 24th.

The stock demonstrated a mixed performance when compared to some of its competitors Monday, as Prologis Inc. $(PLD)$ rose 0.73% to $135.82, International Business Machines Corp. (IBM) rose 1.04% to $231.93, and Digital Realty Trust Inc. (DLR) rose 2.31% to $186.33.

Trading volume (1.2 M) remained 579,072 below its 50-day average volume of 1.8 M.

Data source: Dow Jones Market Data, FactSet. Data compiled September 21, 2026.