Iron Mountain Incorporated logo
IRMIron Mountain Incorporated
For REITs like Iron Mountain Incorporated, GAAP P/E Ratio is distorted: heavy non-cash property depreciation depresses reported earnings and overstates the multiple. Real-estate companies are valued on funds from operations (FFO / AFFO) and price-to-FFO — see the Funds From Operations section. The P/E Ratio is shown for reference only.

The P/E ratio is 145.54 as of Saturday, June 27, 2026.

PE Ratio (145.54) = Close Price ($132.44) / Diluted TTM EPS ($0.91)

IRM PE Ratio

IRM PE Ratio Chart

145.54
-40.26% 1Y
IRM PE Ratio

IRM Average PE Ratio Chart

IRM PE Ratio

IRM Current vs Average PE Ratio Chart

IRM PE Ratio Metrics

PE RATIO

145.54

PE RATIO AVG TTM

313.64

PE RATIO AVG 3Y

153.69

PE RATIO AVG 5Y

100.99

PE RATIO AVG 10Y

64.11

PE RATIO AVG 15Y

44.44

PE RATIO AVG 20Y

40.42

CURRENT VS TTM AVG

-53.60%

CURRENT VS 3Y AVG

-5.30%

CURRENT VS 5Y AVG

+44.11%

CURRENT VS 10Y AVG

+127.00%

CURRENT VS 15Y AVG

+227.51%

CURRENT VS 20Y AVG

+260.09%

IRM Competitors' PE Ratio

NAMEMARKET CAPPE RATIOTTM3Y5Y
Iron Mountain Incorporated (IRM)$39.40B145.54313.64153.69100.99
Crown Castle Inc. (CCI)vs ›$35.60B32.8665.6637.5646.00
Ventas, Inc. (VTR)vs ›$43.29B161.91157.12680.40540.53
Extra Space Storage Inc. (EXR)vs ›$31.52B33.9131.3832.3231.68
VICI Properties Inc. (VICI)vs ›$29.29B9.3211.3112.2816.04
AvalonBay Communities, Inc. (AVB)vs ›$26.97B23.6522.9526.6327.31
Equity Residential (EQR)vs ›$25.62B27.5723.0026.9527.70
Public Storage (PSA)vs ›$56.96B33.4830.7227.2728.04
Realty Income Corporation (O)vs ›$58.86B51.7454.3850.3854.34
SBA Communications Corporation (SBAC)vs ›$19.49B19.3223.8936.5966.73

P/E vs. its own history

At 145.5, P/E is richer than usual, sitting higher than 92% of its 20-year history.

20-year low

14.1

median

41.1

20-year high

738.3

cheaperricher

P/E Comparison

Trailing P/E

145.5

Forward P/E

50.9

Forward P/E Calculation

View All Analyst Estimates

Forward P/E is calculated using analyst consensus EPS estimates for the current or next fiscal year.

Calculation:

Current Price

$132.44

÷

Forward EPS (Est.)

$2.60

=

Forward P/E

50.93

Source: FMP Analyst Consensus Estimates. Forward EPS represents the average analyst estimate for the nearest fiscal year.

PE Ratio Formula & Definition

PE Ratio = Share Price / Diluted EPS (TTM)

The price-to-earnings ratio measures how much investors pay for each dollar of trailing earnings. A lower PE can indicate a cheaper valuation; a higher PE implies higher growth expectations.

Expanded definitions: Investopedia, Wikipedia, Corporate Finance Institute

PE Ratio FAQ

What is the P/E ratio for Iron Mountain Incorporated (IRM)?
The P/E ratio for IRM stock is 145.54.
What is the TTM average P/E ratio for Iron Mountain Incorporated (IRM)?
The TTM average P/E ratio for IRM stock is 313.64.
What is the 3Y average P/E ratio for Iron Mountain Incorporated (IRM)?
The 3Y average P/E ratio for IRM stock is 153.69.
What is the 5Y average P/E ratio for Iron Mountain Incorporated (IRM)?
The 5Y average P/E ratio for IRM stock is 100.99.
What is the 10Y average P/E ratio for Iron Mountain Incorporated (IRM)?
The 10Y average P/E ratio for IRM stock is 64.11.
What is the 15Y average P/E ratio for Iron Mountain Incorporated (IRM)?
The 15Y average P/E ratio for IRM stock is 44.44.
What is the 20Y average P/E ratio for Iron Mountain Incorporated (IRM)?
The 20Y average P/E ratio for IRM stock is 40.42.

IRM PE Ratio History

DATEPE RATIO
2026-06-26145.54
2026-06-25144.02
2026-06-24143.51
2026-06-23146.22
2026-06-22144.90
2026-06-18140.47
2026-06-17137.85
2026-06-16140.89
2026-06-15138.77
2026-06-12139.82
2026-06-11137.55
2026-06-10135.56
2026-06-09138.62
2026-06-08135.71
2026-06-05136.99
2026-06-04143.13
2026-06-03140.60
2026-06-02141.16
2026-06-01138.88
2026-05-29140.93
2026-05-28139.37
2026-05-27139.57
2026-05-26141.10
2026-05-22138.97
2026-05-21139.92
2026-05-20138.25
2026-05-19135.74
2026-05-18136.22
2026-05-15137.44
2026-05-14140.38
2026-05-13138.59
2026-05-12138.69
2026-05-11142.81
2026-05-08141.58
2026-05-07139.35
2026-05-06145.12
2026-05-05144.73
2026-05-04140.90
2026-05-01139.77
2026-04-30138.45
2026-04-29236.51
2026-04-28232.59
2026-04-27232.86
2026-04-24239.63
2026-04-23239.82
2026-04-22242.11
2026-04-21243.35
2026-04-20248.93
2026-04-17243.85
2026-04-16243.14
2026-04-15234.51
2026-04-14235.50
2026-04-13231.06
2026-04-10225.88
2026-04-09224.47
2026-04-08220.92
2026-04-07216.29
2026-04-06215.53
2026-04-02213.34
2026-04-01208.49
2026-03-31210.95
2026-03-30201.57
2026-03-27203.02
2026-03-26206.96
2026-03-25207.62
2026-03-24207.99
2026-03-23210.53
2026-03-20205.72
2026-03-19216.73
2026-03-18218.38
2026-03-17222.97
2026-03-16222.06
2026-03-13220.65
2026-03-12221.77
2026-03-11222.20
2026-03-10222.57
2026-03-09221.27
2026-03-06217.22
2026-03-05221.60
2026-03-04222.72
2026-03-03222.59
2026-03-02227.86
2026-02-27223.73
2026-02-26225.84
2026-02-25230.86
2026-02-24233.87
2026-02-23229.64
2026-02-20227.78
2026-02-19223.36
2026-02-18218.57
2026-02-17224.68
2026-02-13226.83
2026-02-12218.92
2026-02-11187.61
2026-02-10185.90
2026-02-09181.73
2026-02-06179.30
2026-02-05166.51
2026-02-04168.61
2026-02-03165.87
2026-02-02167.39
2026-01-30172.46
2026-01-29174.15
2026-01-28172.67
2026-01-27171.70
2026-01-26175.66
2026-01-23175.20
2026-01-22175.68
2026-01-21175.61
2026-01-20172.88
2026-01-16179.58
2026-01-15173.47
2026-01-14171.36
2026-01-13172.46
2026-01-12167.54
2026-01-09166.96
2026-01-08163.46
2026-01-07162.95
2026-01-06158.89
2026-01-05156.63
2026-01-02155.82
2025-12-31155.28
2025-12-30156.05
2025-12-29154.68
2025-12-26153.48
2025-12-24152.49
2025-12-23151.25
2025-12-22151.67
2025-12-19149.93
2025-12-18147.62
2025-12-17148.61
2025-12-16151.63
2025-12-15154.32
2025-12-12156.03
2025-12-11164.79
2025-12-10160.05
2025-12-09159.30
2025-12-08158.05
2025-12-05157.82
2025-12-04159.17
2025-12-03157.77
2025-12-02154.94
2025-12-01155.05
2025-11-28161.64
2025-11-26161.40
2025-11-25160.35
2025-11-24158.61
2025-11-21159.15
2025-11-20155.37
2025-11-19162.30
2025-11-18167.13
2025-11-17166.01
2025-11-14171.04
2025-11-13171.04
2025-11-12183.62
2025-11-11189.35
2025-11-10191.56
2025-11-07194.91
2025-11-06188.81
2025-11-05188.08
2025-11-04716.50
2025-11-03718.93
2025-10-31713.94
2025-10-30702.50
2025-10-29702.77
2025-10-28721.57
2025-10-27738.28
2025-10-24729.75
2025-10-23720.74
2025-10-22720.87
2025-10-21724.06
2025-10-20733.91
2025-10-17725.24
2025-10-16733.63
2025-10-15733.43
2025-10-14716.78
2025-10-13708.53
2025-10-10706.24
2025-10-09727.81
2025-10-08730.86
2025-10-07734.33
2025-10-06737.66
2025-10-03726.77
2025-10-02716.37
2025-10-01709.15
2025-09-30706.93
2025-09-29695.91
2025-09-26699.93
2025-09-25699.03
2025-09-24702.01
2025-09-23721.84
2025-09-22724.41
2025-09-19692.72
2025-09-18685.99
2025-09-17689.88
2025-09-16695.91
2025-09-15692.23
2025-09-12670.53
2025-09-11685.37
2025-09-10675.66
2025-09-09670.39
2025-09-08640.98
2025-09-05639.25
2025-09-04631.62
2025-09-03622.82
2025-09-02620.39
2025-08-29640.29
2025-08-28637.79
2025-08-27637.10
2025-08-26634.05
2025-08-25636.55
2025-08-22650.90
2025-08-21627.95
2025-08-20633.08
2025-08-19634.95
2025-08-18629.26
2025-08-15634.47
2025-08-14633.84
2025-08-13651.66
2025-08-12639.04
2025-08-11621.01
2025-08-08625.24
2025-08-07636.82
2025-08-06624.41
2025-08-05230.69
2025-08-04228.80
2025-08-01227.26
2025-07-31235.06
2025-07-30236.48
2025-07-29240.03
2025-07-28236.60
2025-07-25239.84
2025-07-24238.46
2025-07-23239.93
2025-07-22239.74
2025-07-21238.36
2025-07-18240.63
2025-07-17238.27
2025-07-16237.18
2025-07-15234.81
2025-07-14236.60
2025-07-11236.58
2025-07-10238.92
2025-07-09239.62
2025-07-08240.44
2025-07-07242.20
2025-07-03243.07
2025-07-02240.49
2025-07-01241.26
2025-06-30247.63
2025-06-27246.98
2025-06-26243.63
2025-06-25247.90
2025-06-24254.10
2025-06-23248.79
2025-06-20244.64
2025-06-18247.83
2025-06-17248.12
2025-06-16246.43
2025-06-13245.27

Showing the most recent 260 of 4,844 data points. The chart above shows the full history.

About Iron Mountain Incorporated

Established in 1951, Iron Mountain Incorporated (NYSE: IRM) has become the world's foremost authority in storage and information management solutions. More than 225,000 organizations globally trust Iron Mountain with their critical assets. With an extensive physical infrastructure spanning over 90 million square feet, the company operates approximately 1,450 facilities in around 50 countries. Within this vast network, Iron Mountain safeguards billions of valued items, including vital corporate records, highly confidential digital assets, and invaluable cultural and historical artifacts. Their comprehensive suite of offerings encompasses secure document archiving, robust information governance, digital transformation initiatives, confidential destruction services, along with advanced data centers, cloud computing solutions, and specialized art storage and logistics. These services empower clients to mitigate costs and risks, ensure regulatory compliance, facilitate swift disaster recovery, and enable a more efficient, digital-first operational model.

Portsmouth, NH
28,850 employees
Real Estate / REIT - Specialty
Sector
Real Estate
Industry
REIT - Specialty
CEO
William L. Meaney