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Iron Mountain Inc (IRM) stock

IRMNYSEReal Estate Investment TrustsFiscal year ends December 31
Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Nov 5, 2026Score 7/3064% above fair value
$114.58+2.15 (+1.91%)

Close on Nov 12, 2026Market cap $34.11BP/E 74.9Yield 2.81%

Iron Mountain operating margin

Operating margin is operating income as a percentage of revenue.

Iron Mountain's operating margin for the twelve months ending Sep 30, 2026 was 19.5%. For fiscal 2025 it was 16.9%, against 16.4% the year before. The highest annual figure on record is 22.5% in fiscal 2020.

Annual operating margin

PeriodPeriod endValueChange (pts)
FY2025Dec 31, 202516.9%+0.4
FY2024Dec 31, 202416.4%−0.4
FY2023Dec 31, 202316.8%−3.8
FY2022Dec 31, 202220.6%+1.6
FY2021Dec 31, 202119.0%−3.5
FY2020Dec 31, 202022.5%+4.2
FY2019Dec 31, 201918.3%−0.8
FY2018Dec 31, 201819.1%+2.6
FY2017Dec 31, 201716.5%+2.2
FY2016Dec 31, 201614.3%−3.2
FY2015Dec 31, 201517.4%−0.2
FY2014Dec 31, 201417.6%+1.4
FY2013Dec 31, 201316.2%−2.3
FY2012Dec 31, 201218.5%−0.5
FY2011Dec 31, 201118.9%+0.0
FY2010Dec 31, 201018.9%−0.7
FY2009Dec 31, 200919.7%+3.5
FY2008Dec 31, 200816.1%–

Quarterly operating margin

Change is against the same quarter a year earlier.

PeriodPeriod endValueChange (pts)
Q3 FY2026Sep 30, 202620.6%+3.0
Q2 FY2026Jun 30, 202618.4%+3.2
Q1 FY2026Mar 31, 202620.4%+4.4
Q4 FY2025Dec 31, 202518.5%+0.6
Q3 FY2025Sep 30, 202517.6%+1.5
Q2 FY2025Jun 30, 202515.2%+0.2
Q1 FY2025Mar 31, 202516.0%−0.7
Q4 FY2024Dec 31, 202417.9%+1.6
Q3 FY2024Sep 30, 202416.1%−1.0
Q2 FY2024Jun 30, 202415.0%−0.6
Q1 FY2024Mar 31, 202416.6%−1.7
Q4 FY2023Dec 31, 202316.3%−3.2
Q3 FY2023Sep 30, 202317.1%−5.1
Q2 FY2023Jun 30, 202315.7%−7.1
Q1 FY2023Mar 31, 202318.3%+0.5
Q4 FY2022Dec 31, 202219.4%+2.5
Q3 FY2022Sep 30, 202222.2%+6.2
Q2 FY2022Jun 30, 202222.8%−4.5
Q1 FY2022Mar 31, 202217.8%+2.0
Q4 FY2021Dec 31, 202116.9%−23.2
Q3 FY2021Sep 30, 202116.1%−7.1
Q2 FY2021Jun 30, 202127.3%+13.9
Q1 FY2021Mar 31, 202115.7%+2.9
Q4 FY2020Dec 31, 202040.1%+21.0
Q3 FY2020Sep 30, 202023.2%+2.1
Q2 FY2020Jun 30, 202013.4%−4.7
Q1 FY2020Mar 31, 202012.9%−2.2
Q4 FY2019Dec 31, 201919.1%−4.8
Q3 FY2019Sep 30, 201921.0%+2.6
Q2 FY2019Jun 30, 201918.1%−0.9
Q1 FY2019Mar 31, 201915.1%−0.0
Q4 FY2018Dec 31, 201823.9%+8.4
Q3 FY2018Sep 30, 201818.4%+0.1
Q2 FY2018Jun 30, 201819.0%+1.1
Q1 FY2018Mar 31, 201815.1%−0.7
Q4 FY2017Dec 31, 201715.6%+0.6
Q3 FY2017Sep 30, 201718.3%–
Q2 FY2017Jun 30, 201717.9%–
Q1 FY2017Mar 31, 201715.7%–
Q4 FY2016Dec 31, 201614.9%–

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