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Iron Mountain Inc (IRM) stock

IRMNYSEReal Estate Investment TrustsFiscal year ends December 31
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 5, 2026Score 5/3075% above fair value
$116.55−1.83 (-1.55%)

Close on Oct 30, 2026Market cap $34.70BP/E 83.3Yield 2.76%

Price history

Iron Mountain share prices for every trading day, newest first. Adjusted for stock splits, not for dividends.

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Close, Oct 30, 2026
$116.55
-1.55% on the day
52-week range
$77.77 – $134.68
-13.5% from the high
Change over 52 weeks
+15.1%
From $101.30 on Oct 30, 2025
Average volume
1.68M
Shares a day, last 90 sessions
DateOpenHighLowCloseChangeVolume
Oct 30, 2026$118.24$118.24$115.05$116.55-1.55%1,073,829
Oct 29, 2026$117.30$119.64$117.24$118.38+2.34%1,011,959
Oct 28, 2026$116.57$116.57$113.51$115.67+0.29%1,187,787
Oct 27, 2026$114.51$115.86$114.25$115.34+2.00%858,902
Oct 26, 2026$110.55$113.30$110.32$113.08+2.84%988,940
Oct 23, 2026$110.23$111.67$109.47$109.96-0.63%959,138
Oct 22, 2026$113.79$113.79$107.20$110.66-3.54%1,783,825
Oct 21, 2026$114.77$116.09$112.99$114.72+1.47%1,724,852
Oct 20, 2026$111.46$114.96$110.82$113.06+1.35%2,102,079
Oct 19, 2026$113.57$114.03$110.90$111.55-0.85%866,339
Oct 16, 2026$112.95$114.15$111.05$112.51-0.15%1,375,553
Oct 15, 2026$110.36$112.82$107.80$112.68+1.64%1,208,591
Oct 14, 2026$113.99$115.09$110.45$110.86-3.26%1,077,790
Oct 13, 2026$115.18$115.29$112.64$114.60-0.43%1,143,758
Oct 12, 2026$114.39$115.66$113.17$115.10+0.52%858,184
Oct 9, 2026$113.70$115.03$113.00$114.51+1.36%1,076,335
Oct 8, 2026$115.34$115.63$110.46$112.97-2.40%1,824,323
Oct 7, 2026$115.34$116.58$114.79$115.75-0.64%1,406,375
Oct 6, 2026$113.96$117.41$113.96$116.50+3.71%1,258,599
Oct 5, 2026$113.32$114.13$112.05$112.33-0.93%1,817,832
Oct 2, 2026$112.77$114.74$112.15$113.39+2.03%1,929,112
Oct 1, 2026$110.72$111.58$108.96$111.13+0.16%1,707,709
Sep 30, 2026$112.00$112.46$109.31$110.95-0.49%1,846,792
Sep 29, 2026$110.58$112.34$110.57$111.50+0.41%1,510,182
Sep 28, 2026$110.90$112.27$109.65$111.05-0.30%1,320,863
Sep 25, 2026$113.82$114.50$110.72$111.38-2.38%1,300,087
Sep 24, 2026$114.56$115.06$113.18$114.09-0.87%1,036,543
Sep 23, 2026$115.75$117.32$114.79$115.09-2.57%1,827,734
Sep 22, 2026$116.45$118.47$116.45$118.13+1.06%1,594,034
Sep 21, 2026$115.48$117.14$114.39$116.89+2.23%1,218,440

Seasonality

IRM return in each calendar month over the last 10 years, including dividends. The current month runs to the latest close.

YearJanFebMarAprMayJunJulAugSepOctNovDec
Average3.3%1.6%0.3%2.8%2.1%2.8%2.6%4.7%-2.3%1.8%1.9%0.4%
Months up5 of 105 of 106 of 106 of 107 of 106 of 106 of 108 of 104 of 107 of 105 of 94 of 9
202611.1%17.6%-4.9%23.4%1.8%-0.8%-3.2%-5.7%-3.1%5.0%
2025-3.4%-8.3%-6.8%4.2%10.1%4.7%-5.1%-5.2%11.3%1.0%-16.1%-2.9%
2024-3.5%16.5%2.8%-3.4%4.1%11.9%14.4%10.4%5.6%4.1%-0.0%-14.5%
20239.5%-3.4%1.5%4.4%-3.3%7.5%8.1%3.5%-5.5%-0.6%8.6%10.1%
2022-12.2%7.1%14.1%-3.0%0.3%-8.5%-0.4%8.5%-15.5%13.9%8.5%-7.2%
202114.2%3.3%8.2%8.4%8.5%-1.5%3.4%9.1%-7.8%5.0%-0.4%16.6%
2020-0.8%-3.8%-19.9%1.6%6.5%3.6%8.0%6.7%-9.1%-2.7%5.5%9.4%
201914.8%-4.8%1.9%-8.4%-5.6%4.1%-6.0%8.3%3.5%1.3%-2.1%1.1%
2018-7.2%-10.2%6.3%3.3%-1.9%7.0%0.3%2.8%-2.8%-11.3%11.0%-2.9%
201710.2%1.5%-0.3%-2.6%0.5%-0.0%6.0%8.2%0.1%2.8%2.2%-6.2%