Moatly / Stocks / IRM

Iron Mountain (IRM) — what is it worth?

$111.18 · $33.1B market cap · REIT - Specialty
Scored from reported financial statements. Data as of 2026-10-02.
Moat
33
Durability of advantage
Management
45
Returns and capital use
Margin of safety
9
Price against value
Buy price
$10.28
Consensus of three methods
Intrinsic value
$20.55
What the business is worth
Margin of safety price
$10.28
Intrinsic value less 50%
10-CAP price
$5.33
Ten times owner earnings
Payback time price
$6.93
Eight years of free cash flow
What the numbers say

Iron Mountain scores 45 for management and 33 for moat. The management score rests on a return on invested capital of 5.3% and a gross margin of 25.7% — figures that describe returns closer to the cost of the capital behind them. Shareholder equity is negative, so the debt-to-equity figure is not meaningful here — usually the mark of heavy buybacks rather than distress, but worth checking. The narrow moat and mixed management are not the same judgement, and the gap between them is where the argument about this business sits.

Three independent anchors set the price worth paying. Growth is modelled at 10.7% a year, below the 11.0% actually measured over the last decade — the model caps growth rather than extrapolating a good run forwards. The exit multiple assumed is 21.4x. That produces an intrinsic value of $20.55, a 10-CAP price of $5.33 and a payback time price of $6.93, with the value zone set at the highest of the three, $10.28. Today's price of $111.18 is 982% above it.

The price is above the value zone and the business scores 33 for moat and 45 for management. Neither test argues for paying up here.

Key figures

Price$111.18
Market cap$33.1B
P/E ratio79.4x
Return on invested capital5.3%
Gross margin25.7%
Debt to equity-19.42x
Free cash flow yield-3.8%
Growth rate used10.7%
Growth rate measured11.0%
Exit multiple assumed21.4x

How it compares

CompanyMoatBuy price
SBA Communications (SBAC)45$111.78
PotlatchDeltic Corp. (PCH)30$19.73
Digital Realty (DLR)53$62.46
American Tower Corp. (AMT)59$100.23

Be in the know

Subscribe to our Substack for deeper insights on value plays.

Subscribe free

Run your own assumptions

Every number above is built on assumptions that can be changed. In Moatly you can move the growth rate, the exit multiple and the margin of safety and watch every figure recalculate, so you are testing your own view of Iron Mountain rather than accepting ours.

Get Moatly on iOS  

Not investment advice. Estimates only, built on stated assumptions that could be wrong. Figures are drawn from reported financial statements and were current as of the date shown. Do your own research.