If you'd invested in Iron Mountain (IRM): performance and returns
Looking for Iron Mountain's share price history and how much the stock has returned? Here's its year-by-year performance and what $1,000 invested at different dates would be worth today.
💰 Calculator: how much would Iron Mountain have returned?
This calculator shows how much Iron Mountain stock would have returned based on the amount invested and the starting year. Pick a sum and a year and you'll instantly see what it would be worth today and the total gain. Real prices, excluding dividends.
If I'd invested $1,000 in Iron Mountain
| Investment | Worth today | Gain |
|---|---|---|
| 1 years ago | $1,202 | +20% |
| 3 years ago | $2,534 | +153% |
| 5 years ago | $4,285 | +328% |
| 10 years ago | $4,676 | +368% |
| since inception (1996) | $43,582 | +4258% |
Return by year (Iron Mountain)
| Year | Return | $1,000 invested at year start |
|---|---|---|
| 2026 (YTD) | +52% | $1,523 (+52%) |
| 2025 | -21% | $1,202 (+20%) |
| 2024 | +50% | $1,805 (+80%) |
| 2023 | +40% | $2,534 (+153%) |
| 2022 | -5% | $2,414 (+141%) |
| 2021 | +78% | $4,285 (+328%) |
| 2020 | -7% | $3,963 (+296%) |
| 2019 | -2% | $3,897 (+290%) |
| 2018 | -14% | $3,348 (+235%) |
| 2017 | +16% | $3,889 (+289%) |
| 2016 | +20% | $4,676 (+368%) |
Frequently asked questions
How much does IRM return?
$1,000 invested in Iron Mountain 10 years ago would be worth $4,676 today, i.e. +17%/yr on average (price, excluding dividends).
What was IRM's best/worst year?
Best year: 2021 (+78%). Worst year: 2025 (-21%). Year-by-year detail is above.
How much would $1,000 invested in IRM since inception be worth?
Since 1996, $1,000 would have become $43,582 (+4258%). Past performance is not a guarantee.
Do Iron Mountain's returns include dividends?
No — these returns are price-only. If Iron Mountain pays a dividend, its total return would be somewhat higher — see its dividend page.
What is Iron Mountain's average annual return (ROI)?
Iron Mountain's return on investment is about +17%/yr over 10 years (price, excluding dividends), versus the S&P 500's ~10%/yr over the long run.