Essex Property (ESS) vs Iron Mountain (Delaware)Common Stock REIT (IRM)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 8, 2026.
Summary
Iron Mountain (Delaware)Common Stock REIT (IRM) has outperformed Essex Property (ESS) over the past year, gaining 7.2% versus a gain of 2.3%. Over five years, IRM leads with a +157.9% price change compared with -19.5% for ESS. Iron Mountain (Delaware)Common Stock REIT is the larger company by market cap ($33.63 billion vs $18.51 billion), about 1.8 times the size.
On valuation, Iron Mountain (Delaware)Common Stock REIT trades at a lower forward P/E (41.4x vs 42.6x for Essex Property). Essex Property offers the higher dividend yield (3.84% vs 2.99%). Essex Property converts more of its revenue into profit, with a net margin of 37.2% versus 2.2%.
Summary generated from market data by MetaCap's automated system. Methodology
Relative performance
Percent change in share price from the first common trading day shown; excludes dividends.
Head-to-head
| Metric | ESS | IRM |
|---|---|---|
| Share price | $268.58 | $112.97 |
| Market cap | $18.51B | $33.63B |
| 1-day change | +0.20% | -2.40% |
| YTD return | +2.43% | +36.19% |
| 1-year return | +2.28% | +7.19% |
| 5-year return | -19.53% | +157.91% |
| P/E ratio (TTM) | 41.77 | 80.69 |
| Forward P/E | 42.63 | 41.43 |
| EPS (TTM) | $6.43 | $1.40 |
| Dividend yield | 3.84% | 2.99% |
| Annual dividend | $10.32 | $3.38 |
| Revenue (latest FY) | $1.89B | $6.90B |
| Revenue growth (YoY) | +6.36% | +12.23% |
| Net income (latest FY) | $702.77M | $152.25M |
| Gross margin | 69.89% | 55.38% |
| Operating margin | 47.65% | 16.86% |
| Net margin | 37.24% | 2.21% |
| 52-week high | $303.35 | $134.68 |
| 52-week low | $238.46 | $77.77 |
| Distance from 52-week high | -11.46% | -16.12% |
| Analyst consensus | hold | buy |
| Avg. price target upside | +13.21% | +28.43% |
| Average volume | 496.81K | 1.73M |
| Shares outstanding | 64.27M | 297.70M |
| Employees | 1,686 | 29,400 |
| Sector | Real Estate | Real Estate |
| Industry | Real Estate Investment Trusts | Real Estate Investment Trusts |
Highlighted cells mark the higher value for growth, returns, margins and yield, and the lower value for P/E ratios. Highlighting is a mechanical comparison, not a recommendation.
Key differences
- Iron Mountain (Delaware)Common Stock REIT trades at a higher earnings multiple (80.7x vs 41.8x trailing P/E).
- Essex Property is more profitable, keeping 37.2 cents of every revenue dollar as net income versus 2.2 cents for Iron Mountain (Delaware)Common Stock REIT.
- Iron Mountain (Delaware)Common Stock REIT grew revenue faster in its latest fiscal year (+12.23% vs +6.36%).
About Essex Property
ESS stock →Essex Property Trust, Inc., an S&P 500 company, is a fully integrated real estate investment trust. The firm acquires, develops, redevelops, and manages multifamily residential properties in selected West Coast markets.
Real Estate · Real Estate Investment Trusts · 1,686 employees
About Iron Mountain (Delaware)Common Stock REIT
IRM stock →Iron Mountain Incorporated is trusted by more than 240,000 customers in 61 countries, including approximately 95% of the Fortune 1000, to help unlock value and intelligence from their assets through services that transcend the physical and digital worlds. Our broad range of solutions address their information management, digital transformation, information security, data center and asset lifecycle management needs.
Real Estate · Real Estate Investment Trusts · 29,400 employees
ESS vs IRM FAQ
Which is bigger, Essex Property or Iron Mountain (Delaware)Common Stock REIT?
Iron Mountain (Delaware)Common Stock REIT (IRM) is larger, with a market capitalization of $33.63B compared with $18.51B for Essex Property (ESS).
Which stock has performed better over the past year, ESS or IRM?
IRM returned +7.19% over the past 12 months, compared with +2.28% for ESS (price return, excluding dividends). Past performance does not predict future results.
Which has the lower P/E ratio, ESS or IRM?
ESS has the lower trailing P/E at 41.8, versus 80.7 for IRM. A lower P/E is not by itself a sign of a better investment; it can reflect slower expected growth or higher risk.
Which pays a higher dividend, Essex Property or Iron Mountain (Delaware)Common Stock REIT?
Essex Property has the higher yield at 3.84%, compared with 2.99% for Iron Mountain (Delaware)Common Stock REIT.
Are Essex Property and Iron Mountain (Delaware)Common Stock REIT in the same industry?
Yes. Both are classified in the Real Estate Investment Trusts industry within the Real Estate sector.