IRM (Iron Mountain) Effective Interest Rate on Debt %: 4.69% (As of Mar. 2026)


IRM Iron Mountain Inc IRM
86 GF Score
Price $119.48
GF Value $107.95
Valuation Fairly Valued
! 7 Warning Signs
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What is Iron Mountain Effective Interest Rate on Debt %?

Iron Mountain IRM +3.48% 86 Effective Interest Rate on Debt % is 4.69% as of Mar. 2026. GuruFocus rates IRM with a GF Score™ of 86/100 and a GF Value™ of $107.95 (Fairly Valued). The stock has 7 warning signs investors should review.

Effective Interest Rate on Debt % is the usage rate that a borrower actually pays on a debt. It is calculated as the positive value of Interest Expense divided by its average total debt. Total debt equals to Long-Term Debt & Capital Lease Obligation plus Short-Term Debt & Capital Lease Obligation. Iron Mountain's annualized positive value of Interest Expense for the quarter that ended in Mar. 2026 was $901 Mil. Iron Mountain's average total debt for the quarter that ended in Mar. 2026 was $19,218 Mil. Therefore, Iron Mountain's annualized Effective Interest Rate on Debt % for the quarter that ended in Mar. 2026 was 4.69%.


Iron Mountain  (NYSE:IRM) Effective Interest Rate on Debt % Explanation

Effective Interest Rate on Debt % measures the usage rate that a borrower actually pays on a debt.


Iron Mountain Effective Interest Rate on Debt % Related Terms


Iron Mountain Effective Interest Rate on Debt % Historical Data

* Premium members only.

The historical data trend for Iron Mountain's Effective Interest Rate on Debt % 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.

Iron Mountain Effective Interest Rate on Debt % Chart

Iron Mountain Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Effective Interest Rate on Debt %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 3.75 3.97 4.26 4.73 4.78

Iron Mountain Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Effective Interest Rate on Debt % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 4.73 4.79 4.80 4.71 4.69

IRM vs CCI, SBAC, WY: Effective Interest Rate on Debt % Comparison

For the REIT - Specialty subindustry, Iron Mountain's Effective Interest Rate on Debt %, along with its competitors' market caps and Effective Interest Rate on Debt % 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 Effective Interest Rate on Debt % vs REITs Industry

For the REITs industry and Real Estate sector, Iron Mountain's Effective Interest Rate on Debt % distribution charts can be found below:

* The bar in red indicates where Iron Mountain's Effective Interest Rate on Debt % falls into.


IRM
86GF Score
Iron Mountain Inc IRM
Effective Interest Rate on Debt % is just one metric. See GF Score™, valuation, warning signs, and more.
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Iron Mountain Effective Interest Rate on Debt % Calculation

Iron Mountain's annualized Effective Interest Rate on Debt % for the fiscal year that ended in Dec. 2025 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (A: Dec. 2024 )+Total Debt  (A: Dec. 2025 ))/ count )
=-1  *  -846.462/( (16369.312+19051.536)/ 2 )
=-1  *  -846.462/17710.424
=4.78 %

where

Total Debt  (A: Dec. 2024 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=15338.803 + 1030.509
=16369.312

Total Debt  (A: Dec. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=18516.333 + 535.203
=19051.536

Iron Mountain's annualized Effective Interest Rate on Debt % for the quarter that ended in Mar. 2026 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (Q: Dec. 2025 )+Total Debt  (Q: Mar. 2026 ))/ count )
=-1  *  -901.296/( (19051.536+19384.724)/ 2 )
=-1  *  -901.296/19218.13
=4.69 %

where

Total Debt  (Q: Dec. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=18516.333 + 535.203
=19051.536

Total Debt  (Q: Mar. 2026 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=19167.759 + 216.965
=19384.724

* 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.

In the calculation of annual Effective Interest Rate on Debt %, the Interest Expense of the last fiscal year and the average total debt over the fiscal year are used. In calculating the quarterly data, the Interest Expense data used here is four times the quarterly (Mar. 2026) interest expense data. Effective Interest Rate on Debt % is displayed in the 30-year financial page.

What does a Effective Interest Rate on Debt % of 4.69% mean?
Iron Mountain (IRM) has a Effective Interest Rate on Debt % of 4.69% as of Mar. 2026. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on Iron Mountain and its competitors.
Is Iron Mountain's Effective Interest Rate on Debt % too high?
Iron Mountain's current Effective Interest Rate on Debt % is 4.69%. Overall, Iron Mountain has a GF Score™ of 86/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Iron Mountain's Effective Interest Rate on Debt % compare to CCI and SBAC?
Iron Mountain's Effective Interest Rate on Debt % of 4.69% can be compared against companies in the REITs industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Effective Interest Rate on Debt % for a REITs company?
A good Effective Interest Rate on Debt % depends on the REITs industry context. However, Effective Interest Rate on Debt % 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 Effective Interest Rate on Debt % mean?
A high Effective Interest Rate on Debt % can signal that a stock is expensive relative to its fundamentals. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on Iron Mountain and its competitors. Iron Mountain's current Effective Interest Rate on Debt % is 4.69%. 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 Fairly Valued. The stock's GF Value™ is $107.95, compared to a current price of $119.48 — trading 10.7% above its estimated fair value. The current Effective Interest Rate on Debt % is 4.69%. Iron Mountain's overall GF Score™ is 86/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Effective Interest Rate on Debt % calculated?
Effective Interest Rate on Debt % is calculated from a company's financial statements. For Iron Mountain (IRM), the current Effective Interest Rate on Debt % is 4.69% 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 $119.48 is trading 10.7% above its estimated GF Value™ of $107.95. GuruFocus considers Iron Mountain to be Fairly Valued.

Key valuation signals for IRM:

  • Effective Interest Rate on Debt %: 4.69%
  • GF Value™: $107.95 vs. price of $119.48 (10.7% above fair value)
  • GF Score™: 86/100 with 7 warning signs

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 Business Description

Industry Real EstateREITs
Address 85 New Hampshire Avenue, Suite 150, Portsmouth, NH, USA, 03801
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.
86GF Score

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Effective Interest Rate on Debt % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$119.48
Price
$107.95
GF Value