Iron MountainIRM -1.86%85 Altman Z-Score is 1.17 as of Jun. 25, 2026, which is 38% above its 10-year median of 0.85. GuruFocus rates IRM with a GF Score™ of 85/100 and a GF Value™ of $107.49 (Modestly Overvalued). The stock has 10 warning signs investors should review. Among 740 REITs companies, Iron Mountain ranks better than 55% on this metric.
The Altman Z-Score is a model designed to predict the likelihood of a company going bankrupt within the next two years. Created by American finance professor Edward Altman in 1968, the model is specifically designed for publicly traded manufacturing companies with assets greater than $1 million.
Warning Sign:
Altman Z-score of 1.17 is in distress zone. This implies bankruptcy possibility in the next two years.
Iron Mountain has a Altman Z-Score of 1.17, indicating it is in Distress Zones. This implies bankrupcy possibility in the next two years.
The zones of discrimination were as such:
When Altman Z-Score <= 1.8, it is in Distress Zones.
When Altman Z-Score >= 3, it is in Safe Zones.
When Altman Z-Score is between 1.8 and 3, it is in Grey Zones.
The historical rank and industry rank for Iron Mountain's Altman Z-Score or its related term are showing as below:
IRM'
s Altman Z-Score Range Over the Past 10 Years
Min: 0.44 Med: 0.85 Max: 1.23
Current: 1.17
During the past 13 years, Iron Mountain's highest Altman Z-Score was 1.23. The lowest was 0.44. And the median was 0.85.
Iron Mountain (NYSE:IRM) Altman Z-Score Explanation
X1: The Working Capital/Total Assets (WC/TA) ratio is a measure of the net liquid assets of the firm relative to the total capitalization. Working capital is defined as the difference between current assets and current liabilities. Ordinarily, a firm experiencing consistent operating losses will have shrinking current assets in relation to total assets. Altman found this one proved to be the most valuable liquidity ratio comparing with the current ratio and the quick ratio. This is however the least significant of the five factors.
X2: Retained Earnings/Total Assets: the RE/TA ratio measures the leverage of a firm. Retained earnings is the account which reports the total amount of reinvested earnings and/or losses of a firm over its entire life. Those firms with high RE, relative to TA, have financed their assets through retention of profits and have not utilized as much debt.
X3, Earnings Before Interest and Taxes/Total Assets (EBIT/TA): This ratio is a measure of the true productivity of the firm's assets, independent of any tax or leverage factors. Since a firm's ultimate existence is based on the earning power of its assets, this ratio appears to be particularly appropriate for studies dealing with corporate failure. This ratio continually outperforms other profitability measures, including cash flow.
X4, Market Value of Equity/Book Value of Total Liabilities (MVE/TL): The measure shows how much the firm's assets can decline in value (measured by market value of equity plus debt) before the liabilities exceed the assets and the firm becomes insolvent.
X5, Revenue/Total Assets (S/TA): The capital-turnover ratio is a standard financial ratio illustrating the sales generating ability of the firm's assets.
Altman Z-Score does not apply to financial companies.
Iron Mountain Altman Z-Score Related Terms
Iron Mountain Altman Z-Score Historical Data
* Premium members only.
The historical data trend for Iron Mountain's Altman Z-Score 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 Altman Z-Score, along with its competitors' market caps and Altman Z-Score 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 Altman Z-Score vs REITs Industry
For the REITs industry and Real Estate sector, Iron Mountain's Altman Z-Score distribution charts can be found below:
* The bar in red indicates where Iron Mountain's Altman Z-Score falls into.
Altman Z-Score model is an accurate forecaster of failure up to two years prior to distress. It can be considered the assessment of the distress of industrial corporations.
Iron Mountain's Altman Z-Score for today is calculated with this formula:
Z
=
1.2
*
X1
+
1.4
*
X2
+
3.3
*
X3
+
0.6
*
X4
+
1.0
*
X5
=
1.2
*
-0.0286
+
1.4
*
-0.2575
+
3.3
*
0.0572
+
0.6
*
1.7375
+
1.0
*
0.3372
=
1.17
* 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. GuruFocus does not calculate Altman Z-Score when X4 or X5 value is 0.
Iron Mountain (IRM) has a Altman Z-Score of 1.17 as of Jun. 25, 2026. The Altman Z-score measures a company's bankruptcy risk. View historical data on Iron Mountain and its competitors. This is 38% above median its historical median of 0.85. Over the past decade, Iron Mountain's Altman Z-Score has ranged from 0.44 to 1.23. According to the industry distribution chart, Iron Mountain ranks #333 out of 740 companies in the REITs industry, placing it in the top 45%.
Is Iron Mountain's Altman Z-Score too high?
Iron Mountain's current Altman Z-Score of 1.17 is 38% above median its 10-year median of 0.85. Over the past 10 years, this metric has ranged from a low of 0.44 to a high of 1.23. The REITs industry median Altman Z-Score is 1.07. Iron Mountain's value of 1.17 is 9.9% above this industry median. Based on the distribution chart, Iron Mountain ranks #333 out of 740 companies in the REITs industry, which is above the industry midpoint. 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 Altman Z-Score compare to CCI and SBAC?
According to the REITs industry distribution chart, Iron Mountain ranks #333 out of 740 companies for Altman Z-Score. This puts Iron Mountain in the upper half of its industry. The industry median Altman Z-Score is 1.07. Iron Mountain's value of 1.17 is 9.9% above this benchmark. Historically, Iron Mountain's own Altman Z-Score has ranged from 0.44 to 1.23 over the past decade. While the company's 10-year median is 0.85 vs. the industry median of 1.07, Iron Mountain has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Altman Z-Score for a REITs company?
The median Altman Z-Score among REITs companies is 1.07, based on 740 companies in the industry. Companies in the top quartile (top 25%) have a Altman Z-Score significantly above this median, while those in the bottom quartile fall well below. However, Altman Z-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Iron Mountain's current Altman Z-Score of 1.17 is 9.9% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Altman Z-Score mean?
A high Altman Z-Score can signal that a stock is expensive relative to its fundamentals. The Altman Z-score measures a company's bankruptcy risk. View historical data on Iron Mountain and its competitors. For the REITs industry, the median Altman Z-Score is 1.07 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Iron Mountain's current Altman Z-Score is 1.17, which is 38% above median its own 10-year median of 0.85. 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 $107.49, compared to a current price of $130.59 — trading 21.5% above its estimated fair value. The current Altman Z-Score is 1.17, which is 38% above median its 10-year median of 0.85 and 9.9% above the REITs industry median of 1.07. 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 Altman Z-Score calculated?
Altman Z-Score is calculated from a company's financial statements. For Iron Mountain (IRM), the current Altman Z-Score is 1.17 as of Jun. 25, 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 $130.59 is trading 21.5% above its estimated GF Value™ of $107.49.
GuruFocus considers Iron Mountain to be Modestly Overvalued.
Key valuation signals for IRM:
Altman Z-Score: 1.17 (38% above median its 10-year median of 0.85)
GF Value™: $107.49 vs. price of $130.59 (21.5% above fair value)
Industry Position: 9.9% above the REITs median (#333 of 740)
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
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