Portsmouth, New Hampshire-based Iron Mountain Incorporated (IRM) is the global leader for storage and information management solutions. The company has a market capitalization of $28.7 billion, and its broad range of solutions addresses its clients’ information management, digital transformation, information security, data center and asset lifecycle management needs.
Shares of the company have underperformed the broader market over the past year and have outperformed in 2026. IRM stock has declined 8.5% over the past 52 weeks and has grown 17% on a YTD basis. In comparison, the S&P 500 Index ($SPX) has returned 15.6% over the past year and 1.7% in 2026.
