Iron Mountain

IRMNYSE United States Real Estate Real Estate Investment Trusts

Market cap

$31.491 B

$105.78 -10.86%

Close of 6 Nov 2026

As of 6 Nov 2026, Iron Mountain (IRM) has a market capitalization of $31.5B. Market cap measures the value of outstanding equity at market prices; company totals combine applicable share classes. Prices and market caps come from Nasdaq, with financial fundamentals from SEC filings. See sources and calculation details.

Revenue

$6.90B

#535 by revenue

Earnings

—

Not reported

Shares outstanding

297,833,786

Latest filing cover page

P/E ratio

—

Cap ÷ net income

Real Estate Investment Trusts, ranked by market cap

All 173 →

#11Crown CastleCCI$38.8B
#12Extra Space StorageEXR$33.5B
#13Iron MountainIRM$31.5B
#14Vici PropertiesVICI$27.7B
#15Sba CommunicationsSBAC$20.5B

What if Iron Mountain were worth as much as…

Open the what-if tool →

Gold $28.2T

$94,849.20

Per share 897× higher

Bitcoin $1.53T

$5,132.13

Per share 48.5× higher

Apple $5.02T

$16,848.29

Per share 159× higher

Or at a round number

$50.0B $100.0B $200.0B $500.0B

Where these numbers come from

Share counts and financials for Iron Mountain are taken from its own SEC filings via EDGAR: public record, not an estimate. Market cap is shares outstanding multiplied by the latest close. Read the methodology.