Iron Mountain Incorporated (IRM)
NYSE: IRM · Real-Time Price · USD
123.52
-0.44 (-0.35%)
At close: May 19, 2026, 4:00 PM EDT
124.18
+0.66 (0.53%)
After-hours: May 19, 2026, 7:55 PM EDT
Iron Mountain Market Cap
Iron Mountain has a market cap or net worth of $36.75 billion as of May 19, 2026. Its market cap has increased by 28.19% in one year.
Market Cap
36.75B
Enterprise Value
56.22B
1-Year Change
28.19%
Ranking
Category
Stock Price
$123.52
Market Cap Chart
Since December 1, 1998, Iron Mountain's market cap has increased from $880.30M to $36.75B, an increase of 4,074.74%. That is a compound annual growth rate of 14.54%.
Market Cap History
| Date | Market Cap | % Change |
|---|---|---|
| May 19, 2026 | 36.75B | 49.88% |
| Dec 31, 2025 | 24.52B | -20.51% |
| Dec 31, 2024 | 30.85B | 50.96% |
| Dec 29, 2023 | 20.43B | 41.00% |
| Dec 30, 2022 | 14.49B | -4.36% |
| Dec 31, 2021 | 15.15B | 78.36% |
| Dec 31, 2020 | 8.50B | -7.17% |
| Dec 31, 2019 | 9.15B | -1.35% |
| Dec 31, 2018 | 9.28B | -7.89% |
| Dec 29, 2017 | 10.07B | 17.70% |
| Dec 30, 2016 | 8.56B | 50.04% |
| Dec 31, 2015 | 5.70B | -23.84% |
| Dec 31, 2014 | 7.49B | 29.04% |
| Dec 31, 2013 | 5.80B | 8.34% |
| Dec 31, 2012 | 5.36B | -6.30% |
| Dec 30, 2011 | 5.72B | 14.22% |
| Dec 31, 2010 | 5.01B | 8.14% |
| Dec 31, 2009 | 4.63B | -7.20% |
| Dec 31, 2008 | 4.99B | -32.78% |
| Dec 31, 2007 | 7.42B | 35.56% |
| Dec 29, 2006 | 5.47B | -1.15% |
| Dec 30, 2005 | 5.54B | 40.36% |
| Dec 31, 2004 | 3.94B | 16.88% |
| Dec 31, 2003 | 3.38B | 20.50% |
| Dec 31, 2002 | 2.80B | 14.14% |
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Market Capitalization
Market capitalization, also called net worth, is the total value of all of a company's outstanding shares. It is calculated by multiplying the stock price by the number of shares outstanding.
Formula: Market Cap = Stock Price * Shares Outstanding
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