Iron Mountain Inc vs Simon Property Group Inc — how do they compare? Iron Mountain Inc trades at $114.11 (market cap $34.46B), while Simon Property Group Inc trades at $199.69 (market cap $64.59B). The key difference: Simon Property Group Inc is the larger of the two by market cap, and Simon Property Group Inc pays the higher dividend (4.46%). Which is the better fit depends on your goals — on Pluang, investors hold Iron Mountain Inc for 80 Days and Simon Property Group Inc for 99 Days on average.
| IRM | SPG | |
|---|---|---|
Market Cap | $34.46B | $64.59B |
Volume | 1,379,608 | 1,093,907 |
Sector | Real Estate | Real Estate |
52-Week High | $133.06 | $236.70 |
52-Week Low | $78.86 | $173.35 |
Typical Hold Time | 80 Days | 99 Days |
Enterprise Value | $53.87B | $93.03B |
Dividend Yield | 2.99% | 4.46% |
Signals from Pluang's Aura AI — not financial advice
Iron Mountain (IRM) trades at $115.73, down 0.66% on the day, with a bullish technical signal and strong institutional interest. The company has beaten EPS estimates for three consecutive quarters, with Q3 2026 results pending. Revenue growth is robust, climbing from $5.1B in 2022 to $6.9B in 2025, though net margins have compressed. Recent news highlights expansion in data centers and digital partnerships, including a 300MW pipeline and AI collaborations.
The outlook is supported by analyst consensus with a $142.75 price target (66.7% buy ratings), but high debt levels and elevated P/E of 82.09 pose risks. Earnings growth from digital initiatives is the key catalyst, while leverage and margin pressure require monitoring for sustained shareholder value.
Simon Property Group (SPG) trades at $197.59, down 2.06% amid bearish technical signals, though fundamentals remain strong with robust profitability margins (net income margin 66.57%) and consistent revenue growth. Recent Q2 2026 earnings missed expectations, but Q4 2025 and Q1 2026 beat estimates. The company maintains solid cash flow from operations ($4.14B in 2025) and a raised dividend, while facing headwinds from rising bond yields and debt maturities.
Outlook: SPG offers value with a P/E of 14.09 below sector averages and a 42% analyst buy rating, targeting 13% upside to consensus. Risks include interest rate sensitivity, high leverage ($24.21B debt), and retail sector volatility. The stock's current pullback may present a buying opportunity for income investors, supported by strong leasing demand and strategic initiatives like the Simon Media Network launch.
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Iron Mountain Inc is a record management services provider. The firm is organized as a REIT. Most of its revenue comes from its storage business, with the rest coming from value-added services. The firm primarily caters to enterprise clients in developed markets. Its business segments include Global RIM Business
Read more on IRM →Simon Property Group is the second- largest real estate investment trust in the United States. Its portfolio includes an interest in 207 properties: 119 traditional malls, 69 premium outlets, 14 Mills centers (a combination of a traditional mall, outlet center, and big-box retailers), six lifestyle centers, and five other retail properties. Simon's portfolio averaged $693 in sales per square foot over the 12 months prior to the pandemic. The company also owns a 21% interest in Klepierre, a European retail company with investments in shopping centers in 16 countries, and joint venture interests in 33 premium outlets across 11 countries.
Read more on SPG →