Join

Compare · IRM vs O

IRM vs O

Side-by-side comparison of Iron Mountain Incorporated (Delaware) (IRM) and Realty Income Corporation (O): market cap, price performance, sector, and recent activity on the wire.

Summary

  • Both IRM and O operate in Real Estate Investment Trusts (Real Estate), so they compete in similar markets.
  • O is the larger of the two at $59.01B, about 1.7x IRM ($34.07B).
  • Over the past year, IRM is up 36.8% and O is up 10.1% - IRM leads by 26.7 points.
  • IRM has been more active in the news (6 items in the past 4 weeks vs 4 for O).
  • O has more recent analyst coverage (25 ratings vs 9 for IRM).
PerformanceIRM+36.78%O+10.12%
2025-04-30+0.00%2026-04-30
MetricIRMO
Company
Iron Mountain Incorporated (Delaware)
Realty Income Corporation
Price
$122.75+7.21%
$63.68+0.58%
Market cap
$34.07B
$59.01B
1M return
+20.11%
+4.12%
1Y return
+36.78%
+10.12%
Industry
Real Estate Investment Trusts
Real Estate Investment Trusts
Exchange
NYSE
NYSE
IPO
News (4w)
6
4
Recent ratings
9
25
IRM

Iron Mountain Incorporated (Delaware)

Iron Mountain Incorporated (NYSE: IRM), founded in 1951, is the global leader for storage and information management services. Trusted by more than 225,000 organizations around the world, and with a real estate network of more than 90 million square feet across approximately 1,450 facilities in approximately 50 countries, Iron Mountain stores and protects billions of valued assets, including critical business information, highly sensitive data, and cultural and historical artifacts. Providing solutions that include secure records storage, information management, digital transformation, secure destruction, as well as data centers, cloud services and art storage and logistics, Iron Mountain helps customers lower cost and risk, comply with regulations, recover from disaster, and enable a more digital way of working.

O

Realty Income Corporation

Realty Income, The Monthly Dividend Company, is an S&P 500 company dedicated to providing stockholders with dependable monthly income. The company is structured as a REIT, and its monthly dividends are supported by the cash flow from over 6,500 real estate properties owned under long-term lease agreements with our commercial clients. To date, the company has declared 608 consecutive common stock monthly dividends throughout its 52-year operating history and increased the dividend 109 times since Realty Income's public listing in 1994 (NYSE: O). The company is a member of the S&P 500 Dividend Aristocrats index. Additional information about the company can be obtained from the corporate website at www.realtyincome.com.