What is IRM's five-year median P/E?

86.5x. Half of IRM's weekly readings over the last five years were higher and half were lower. This page has 631 weekly readings, from Sep 29, 2014 to Oct 26, 2026.

Does a low historical rank mean a stock is a buy?

No. The rank compares IRM only with its own past. Slower growth or more risk can justify a lower multiple than before. P/E uses earnings and P/S uses revenue from the last twelve months.

Iron Mountain (IRM) valuation history

Real Estate

$118.38

Latest weekly close · Market cap $35.5B

Within its usual range

Iron Mountain's P/E of 84.6x is higher than 50% of its weekly readings over the last five years (as of Oct 30, 2026).

Forward P/E 40.3× (analyst estimates, not ranked).

Weekly P/E with its 5-year range

P/E each weekMiddle half of the last 5 years5-year median 86.5×

5-year median: 86.5×
10-year median: 48.3×
5-year low to high: 19.6× to 751.6×
Versus 5-year median: -2%

P/E

50thpercentile

of its weekly readings over the last five years

Growth, last 12 months vs the year before

Revenue: +17%accelerating
EPS: +900%

Price vs revenue and EPS, indexed to 100

Each line starts at 100 at its first positive reading over the last five years. Revenue and EPS change at fiscal quarter ends.

PriceRevenue, last 12 monthsEPS, last 12 months100 = first reading

P/E at each year-end

The last weekly reading of each year, and its percentile against the five years before it.

IRM P/E at each year-end
Year-end	P/E	5-year percentile
Dec 29, 2025	157.1×	81
Dec 30, 2024	293.6×	98
Dec 25, 2023	74.5×	100
Dec 26, 2022	29.5×	40
Dec 27, 2021	23.8×	13
Dec 28, 2020	64.1×	79
Dec 30, 2019	22.9×	11
Dec 31, 2018	41.5×	23
Dec 25, 2017	47.2×	34
Dec 26, 2016	108.3×	96

Real Estate peers on P/E

Each percentile compares a stock with its own last five years.

Compare IRM with peers

Real Estate peers of IRM on P/E
Stock	P/E	Versus its own history	5-year percentile
EPREPR Properties	16.4×	Historically low	2
GLPIGaming and Leisure Properties Inc	12.0×	Historically low	3
LAMRLamar Advertising Co	29.0×	Above its usual range	73
MRPMILLROSE PROPERTIES	9.1×	Below its usual range	13
AHRAmerican Healthcare REIT Inc	77.9×	Historically low	9

Appears in

Sector: Real Estate
Screens: Stocks Below Their 5-Year Median P/E
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Research on IRM

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About this history

What is IRM's current P/E?: Iron Mountain's P/E of 84.6x is higher than 50% of its weekly readings over the last five years (as of Oct 30, 2026).
What is IRM's five-year median P/E?: 86.5x. Half of IRM's weekly readings over the last five years were higher and half were lower. This page has 631 weekly readings, from Sep 29, 2014 to Oct 26, 2026.
Does a low historical rank mean a stock is a buy?: No. The rank compares IRM only with its own past. Slower growth or more risk can justify a lower multiple than before. P/E uses earnings and P/S uses revenue from the last twelve months.