stockNYSE: IRM • Today's Updates
Iron Mountain Incorporated (Delaware)Common Stock REIT (IRM) Today Close
Showing Closing Date Range from Sep, 10 to Sep, 11, 2026.
NYSE MarketOfficial Close Wall Street: 4:41 PM ET
Today's Session Settled & Finalized
Official market closing rate settled for Sep 11, 2026. Next session begins at 9:30 AM ET.
Multi-Day Trends:View 28-Day Chart
Started At
Market Open Opening price at session start (9:30 AM ET)
$114.26
Opening Gap+$1.36(+1.20%)
Closed At
OFFICIAL CLOSESettled close for Sep 11, 2026
$115.18
Session DateSep 11, 2026
Gained Today
GAIN Net movement vs previous close
+$2.28 (+2.02%)
Intraday (from open)+$0.92 (+0.81%)
Day's High & Low Range
Session Low
$113.54
Session High
$115.98
Low ($113.54)Closed At ($115.18)High ($115.98)
Trading Activity & Liquidity
Shares Traded
1.20M
1,196,656 shares
Dollar Volume
$137.83M
Close × Volume traded
Session Turnover$137.83M USD
Session Statistics Breakdown
Key opening, settlement, and trading metrics for Iron Mountain Incorporated (Delaware)Common Stock REIT (IRM).
Sep 11, 2026
Started At (Open)
$114.26
Previous Close
$112.90
Session High
$115.98
Session Low
$113.54
Closed At
$115.18
Gained / Lost ($)
+$2.28
Gained / Lost (%)
+2.02%
Day's Spread
$2.44