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Iron Mountain Incorporated

Iron Mountain Incorporated’s revenue for fiscal 2025 (year ended December 2025) was $6.9 billion, up 12.2% from fiscal 2024.

Revenue: +13.5%
EPS: +50.0%
Free cash flow: −13.0%
Total debt: +11.0%

Quarter to September 2026, against a year earlier

105.05 0.45 −0.43%

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Market cap: $31.4B
P/E: 69.3×
Fwd P/E: 63.1×
Dividend yield: 3.24%
F-score: 5/9
Altman Z: n/a
Beneish M: n/a
Dividend safety: n/a

Overview Business Profile Earnings & Analysis Segments Valuation Filings

Iron Mountain Incorporated (IRM) P/B ratio

Alert me on P/B ratio

Iron Mountain Incorporated has no meaningful P/B ratio: its trailing twelve-month book value is negative. Over the past ten years it has ranged from 0.0× (November 2026) to 1,406× (June 2024) — the current reading is the lowest in ten years.

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<iframe src="https://stockrow.com/embed/IRM/pb-ratio" width="100%" height="360" style="border:0" loading="lazy" title="Iron Mountain Incorporated P/B ratio, 10 years"></iframe>
<p style="font-size:12px">Source: <a href="https://stockrow.com/IRM/metrics/pb-ratio">Iron Mountain Incorporated (IRM) P/B ratio — stockrow.com</a></p>

Period	P/B ratio	Change
FY2025	0.0×	—
FY2024	0.0×	—
FY2023	94.6×	317.08%
FY2022	22.7×	28.35%
FY2021	17.7×	136.47%
FY2020	7.5×	19.66%
FY2019	6.2×	25.54%
FY2018	5.0×	14.37%
FY2017	4.4×	3.39%
FY2016	4.2×	(60.93%)

Period	P/B ratio	Change
Sep 2026	0.0×	—
Jun 2026	0.0×	—
Mar 2026	0.0×	—
Dec 2025	0.0×	—
43 more quarters	Free account

Against its own ten years

Low 0.0× High 1,406×

Ten-year median 6.2×

Current reading's percentile 20

Company	P/B ratio
IRM Iron Mountain Incorporated	n/m
CCI Crown Castle Inc. compare	n/m
SBAC SBA Communications Corporation compare	n/m
WY Weyerhaeuser Company compare	1.7×
GLPI Gaming and Leisure Properties, Inc. compare	2.1×
DLR Digital Realty Trust, Inc. compare	2.3×
EQIX Equinix, Inc. compare	6.8×
AMT American Tower Corporation compare	9.2×
LAMR Lamar Advertising Company compare	15.5×
Reit Specialty industry median	2.0×
Real Estate sector median	1.0×
Market median	1.7×

What P/B ratio is

Price to Book Value tells an investor how much the market pays for a company’s shares relative to the accounting net worth that belongs to common shareholders.

Stock Price ÷ (Common Equity (Total) (latest quarter) ÷ Shares (Basic, Weighted) (latest quarter))

The full definition of P/B ratio →

Iron Mountain Incorporated (IRM) P/B ratio

P/B ratio, daily

Annual newest first

Quarterly newest first

Against its own ten years

P/B ratio against peers

What P/B ratio is

More on IRM

P/B ratio, daily

Annual newest first

Quarterly newest first

Against its own ten years

P/B ratio against peers

What P/B ratio is

More on IRM

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