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

The median, or middle weekly reading, is 83.9× over the last five years. Available history contains 533 weekly observations from Aug 8, 2016 to Oct 19, 2026.

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

No. The rank describes a stock’s own history. Changes in growth, financial risk and the business can change the multiple investors pay. P/E uses earnings and P/S uses revenue from the previous twelve months.

Iron Mountain (IRM) valuation history

Within its usual range

As of Oct 22, 2026

IRM's P/E of 81.9x is lower than 51% of its available weekly readings from the last five years.

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P/E at year-end

Last weekly reading of each completed year. Rank runs from lowest (0%) to highest (100%) within the five years available on that date.

IRM year-end valuation history
Reading date	P/E	5-year rank
Dec 29, 2025	157.1×	81%
Dec 30, 2024	293.6×	98%
Dec 25, 2023	74.5×	99%
Dec 26, 2022	29.5×	39%
Dec 27, 2021	23.8×	12%
Dec 28, 2020	64.1×	77%
Dec 30, 2019	22.9×	0%
Dec 31, 2018	43.7×	7%
Dec 25, 2017	47.2×	3%
Dec 26, 2016	108.3×	Short history

Peers on the same measure

Stock	P/E	5-year rank
AREAlexandria Real Estate Equities	Unavailable	Unranked
BXPBXP, Inc.	31.5×	40%
CBRECBRE Group	30.9×	50%
CSGPCoStar Group	173.2×	68%

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Real Estate Stocks with Low P/E Ratios and Steady Revenue Growth Stocks Below Their 5-Year Median P/E Stocks Near Their Lowest P/E Ratios in 5 Years

Research on IRM

No published research on IRM yet. Read how valuation percentiles work.

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About this history

What is IRM's current P/E?: IRM's P/E of 81.9x is lower than 51% of its available weekly readings from the last five years.
What is IRM's five-year median P/E?: The median, or middle weekly reading, is 83.9× over the last five years. Available history contains 533 weekly observations from Aug 8, 2016 to Oct 19, 2026.
Does a low historical rank mean a stock is a buy?: No. The rank describes a stock’s own history. Changes in growth, financial risk and the business can change the multiple investors pay. P/E uses earnings and P/S uses revenue from the previous twelve months.