IRM trailing returns
Iron Mountain Incorporated (Delaware)Common Stock REIT's 10-year annualized return is +12.1% per year (+212.6% cumulative). How Iron Mountain Incorporated (Delaware)Common Stock REIT (IRM) has performed over the last day, week, month and year, over 5, 10 and 20 years, and since inception, through July 24, 2026 — cumulative and annualized, with dividends on or off.
Trailing returns by period#
To 2026-07-24. Annualized (CAGR) for windows of a year or more.
| Period | Path | Annualized | Cumulative |
|---|---|---|---|
| 1 day | — | +3.1% | |
| 1 week | — | +3.7% | |
| 1 month | — | -1.7% | |
| YTD | — | +54.7% | |
| 1 year | +29.2% | +29.2% | |
| 5 years | +24.2% | +195.6% | |
| 10 years | +12.1% | +212.6% | |
| 20 years | +9.4% | +499.7% | |
| Since inception (1996) | +13.2% | +4260.4% |
Growth of IRM#
Actual index level (solid); dashed lines are each window's constant-rate path from start to today.
Methodology#
Trailing returns measure from the closest close about N years before the latest close (2026-07-24). Cumulative return is the total change over the window; annualized return is the compound annual growth rate (CAGR), shown for windows of a year or more. Total return reinvests dividends (from IRM's split- and dividend-adjusted closes); price return excludes them. See the year-by-year returns for the calendar breakdown. Past performance does not predict future returns; not investment advice.
See also: S&P 500 · Nasdaq-100 · Dow Jones · Russell 2000 · US Bond Market · Gold · Silver · Bitcoin · Ethereum
FAQ
- What is Iron Mountain Incorporated (Delaware)Common Stock REIT's 10-year return?
- Over the last 10 years, Iron Mountain Incorporated (Delaware)Common Stock REIT (IRM) returned about +12.1% a year annualized (+212.6% cumulative total return).
- What is Iron Mountain Incorporated (Delaware)Common Stock REIT's 20-year annualized return?
- Over the last 20 years, Iron Mountain Incorporated (Delaware)Common Stock REIT (IRM) compounded at about +9.4% a year (+499.7% cumulative).
- What is Iron Mountain Incorporated (Delaware)Common Stock REIT's return since inception?
- Since 1996, Iron Mountain Incorporated (Delaware)Common Stock REIT (IRM) has compounded at about +13.2% a year — +4260.4% in total.