Iron Mountain IRM Market capitalization
Market capitalization at other companies
Other financials
Where this comes from
Computed from the period-end share price: $30.38B.
The official record: Iron Mountain’s 10-Q, filed April 30, 2026, on SEC EDGAR. View the filing →
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Questions, answered.
- What is Iron Mountain's market capitalization?
- Iron Mountain (IRM) reported market capitalization of $30.38B in Q1 2026.
- How has Iron Mountain's market capitalization changed year-over-year?
- Iron Mountain's market capitalization increased by 20.2% year-over-year, from $25.27B to $30.38B.
- What is the long-term trend for Iron Mountain's market capitalization?
- Over 4 years (2021 to 2025), Iron Mountain's market capitalization has grown at a 21.6% compound annual growth rate (CAGR), from $50.7B to $110.95B.
- What does market capitalization mean?
- What the stock market says the company's equity is worth.
- How do you interpret market capitalization?
- A size and market-sentiment gauge, not a quality measure — interpret through valuation ratios (P/E, P/S) that relate it to fundamentals.
- How does market capitalization compare across companies?
- Comparable across companies as a size class; the input to every equity-price valuation multiple.