---
title: "Iron Mountain Inc. Stock Underperforms Tuesday When Compared To Competitors Despite Daily Gains"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/293385708.md"
description: "Iron Mountain Inc. (IRM) shares rose 1.07% to $125.56 on Tuesday, marking its third consecutive day of gains. Despite the daily increase, IRM underperformed relative to some competitors; Prologis and Digital Realty Trust saw larger gains, while IBM declined. The stock closed 6.77% below its 52-week high. Trading volume was lower than the 50-day average."
datetime: "2026-07-21T20:53:23.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/293385708.md)
  - [en](https://longbridge.com/en/news/293385708.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/293385708.md)
generator: "portal-rs"
---

# Iron Mountain Inc. Stock Underperforms Tuesday When Compared To Competitors Despite Daily Gains

This article was automatically generated by MarketWatch using technology from Automated Insights.

Shares of Iron Mountain Inc. (IRM) advanced 1.07% to $125.56 Tuesday, on what proved to be an all-around favorable trading session for the stock market, with the S&P 500 Index rising 0.89% to 7,509.20 and the Dow Jones Industrial Average rising 0.74% to 52,224.64.

This was the stock's third consecutive day of gains.

Iron Mountain Inc. closed 6.77% below its 52-week high of $134.68, which the company achieved on June 24th.

The stock demonstrated a mixed performance when compared to some of its competitors Tuesday, as Prologis Inc. (PLD) rose 1.67% to $149.94, International Business Machines Corp. (IBM) fell 1.17% to $210.50, and Digital Realty Trust Inc. (DLR) rose 1.74% to $179.31.

Trading volume (1.5 M) remained 197,526 below its 50-day average volume of 1.7 M.

Data source: Dow Jones Market Data, FactSet. Data compiled July 21, 2026.

This content was created by MarketWatch, which is operated by Dow Jones & Co. MarketWatch is published independently from Dow Jones Newswires and The Wall Street Journal.

(END) Dow Jones Newswires

07-21-26 1653ET

### Related Stocks

- [IRM.US](https://longbridge.com/en/quote/IRM.US.md)
- [.SPX.US](https://longbridge.com/en/quote/.SPX.US.md)
- [.DJI.US](https://longbridge.com/en/quote/.DJI.US.md)
- [PLD.US](https://longbridge.com/en/quote/PLD.US.md)
- [IBM.US](https://longbridge.com/en/quote/IBM.US.md)
- [DLR.US](https://longbridge.com/en/quote/DLR.US.md)

## Related News & Research

- [Iron Mountain (NYSE:IRM) CEO Sells $4,389,113.92 in Stock](https://longbridge.com/en/news/297831153.md)
- [Iron Mountain (IRM) Could Be 13% Undervalued On Its Data Center Growth Narrative](https://longbridge.com/en/news/297419045.md)
- [Iron Mountain EVP Mark Kidd sells 6,000 common shares for $693,600](https://longbridge.com/en/news/297826097.md)
- [Iron Mountain announces R$ 0.25 dividend per unit, payable Oct. 8](https://longbridge.com/en/news/297821936.md)
- [Iron Mountain to present at Goldman Sachs Communacopia + Technology Conference 2026](https://longbridge.com/en/news/297640387.md)

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> **Disclaimer: This article is for reference only and does not constitute any investment advice.**