Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
A high debt to equity ratio generally means that a company has been aggressive in financing its growth with debt. This can result in volatile earnings as a result of the additional interest expense.
The historical rank and industry rank for Iron Mountain's Debt-to-Equity or its related term are showing as below:
IRM'
s Debt-to-Equity Range Over the Past 10 Years
Min: -115.85 Med: 5.95 Max: 821.85
Current: -15.95
During the past 13 years, the highest Debt-to-Equity Ratio of Iron Mountain was 821.85. The lowest was -115.85. And the median was 5.95.
IRM's Debt-to-Equity is not ranked
in the REITs industry.
Industry Median: 0.78
vs IRM: -15.95
Iron Mountain (NYSE:IRM) Debt-to-Equity Explanation
Because a company can increase its ROE % by having more financial leverage, it is important to watch the leverage ratio when investing in high ROE % companies.
Iron Mountain Debt-to-Equity Related Terms
Iron Mountain Debt-to-Equity Historical Data
* Premium members only.
The historical data trend for Iron Mountain's Debt-to-Equity can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
For the REIT - Specialty subindustry, Iron Mountain's Debt-to-Equity, along with its competitors' market caps and Debt-to-Equity data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Iron Mountain Debt-to-Equity vs REITs Industry
For the REITs industry and Real Estate sector, Iron Mountain's Debt-to-Equity distribution charts can be found below:
* The bar in red indicates where Iron Mountain's Debt-to-Equity falls into.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Iron Mountain (IRM) has a Debt-to-Equity of -15.95 as of Mar. 2026. Debt-to-Equity ratio represents the ratio of total debt to total company equity. View historical data on Iron Mountain and its competitors. According to the industry distribution chart, Iron Mountain ranks #999999 out of 684 companies in the REITs industry.
Is Iron Mountain's Debt-to-Equity too high?
Iron Mountain's current Debt-to-Equity is -15.95. Based on the distribution chart, Iron Mountain ranks #999999 out of 684 companies in the REITs industry, which is in the bottom quartile relative to peers. Overall, Iron Mountain has a GF Score™ of 85/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Iron Mountain's Debt-to-Equity compare to CCI and SBAC?
According to the REITs industry distribution chart, Iron Mountain ranks #999999 out of 684 companies for Debt-to-Equity. This places Iron Mountain in the lower half of its industry. The industry median Debt-to-Equity is 0.78. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Debt-to-Equity for a REITs company?
The median Debt-to-Equity among REITs companies is 0.78, based on 684 companies in the industry. Companies in the top quartile (top 25%) have a Debt-to-Equity significantly above this median, while those in the bottom quartile fall well below. However, Debt-to-Equity should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Debt-to-Equity mean?
A high Debt-to-Equity can signal that a stock is expensive relative to its fundamentals. Debt-to-Equity ratio represents the ratio of total debt to total company equity. View historical data on Iron Mountain and its competitors. For the REITs industry, the median Debt-to-Equity is 0.78 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Iron Mountain's current Debt-to-Equity is -15.95. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Iron Mountain stock overvalued right now?
Based on GuruFocus' analysis, Iron Mountain (IRM) is currently considered Modestly Overvalued. The stock's GF Value™ is $108.56, compared to a current price of $126.99 — trading 17% above its estimated fair value. The current Debt-to-Equity is -15.95. Iron Mountain's overall GF Score™ is 85/100 with 10 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Debt-to-Equity calculated?
Debt-to-Equity is calculated from a company's financial statements. For Iron Mountain (IRM), the current Debt-to-Equity is -15.95 as of Mar. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Iron Mountain (IRM) Overvalued in 2026?
Based on GuruFocus' analysis, Iron Mountain stock appears to be overvalued.
The current stock price of $126.99 is trading 17% above its estimated GF Value™ of $108.56.
GuruFocus considers Iron Mountain to be Modestly Overvalued.
Key valuation signals for IRM:
Debt-to-Equity: -15.95
GF Value™: $108.56 vs. price of $126.99 (17% above fair value)
No single metric tells the full story. See the IRM stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Iron Mountain Inc is an information management services provider organized and operated as a real estate investment trust. The company offers solutions to its clients to address their information management, digital transformation, information security, data center, and asset lifecycle management (ALM) needs. Its customers come from various industries, including commercial, legal, financial, healthcare, technology, etc. The company has two reportable segments: Global Records and Information Management (Global RIM) and Global Data Center. Maximum revenue is generated from the Global RIM segment, which offers data and records management, secure shredding, consumer storage, and other related services. Geographically, the company generates maximum revenue from the United States.
85GF Score
Get the complete analysis for IRM
Debt-to-Equity is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
IRM has been successfully added to your 
