In fiscal year 2025 Iron Mountain reported $6.9B in revenue against Simon Property's $6.4B, 1.08× as much.
| Measure | IRM | SPG | Gap |
|---|---|---|---|
| Revenue | $6.9B | $6.4B | ×1.08 |
| Operating income | $1.2B | $3.2B | ×2.73 |
| Net income | $152M | $5.4B | ×35.23 |
| EPS (diluted) | 0.49 | 14.17 | ×28.92 |
| Total assets | $21.1B | $40.6B | ×1.92 |
| Total liabilities | $21.8B | $33.9B | ×1.55 |
| Shareholders' equity | −$981M | $5.2B | — |
| Cash | $159M | $823M | ×5.19 |
| Long-term debt | $16.2B | $28.4B | ×1.75 |
| Shares outstanding | 296M | 8,000 | ×36,979.40 |
| Net margin | 2.2% | 84.3% | ×38.21 |
| Operating margin | 16.9% | 49.9% | ×2.96 |
| Operating cash flow | $1.3B | $4.1B | ×3.09 |
| Capital expenditure | $2.3B | $934M | ×2.43 |
| Free cash flow | −$932M | $3.2B | — |
| Income tax expense | $58.9M | $20.3M | ×2.91 |
| Share buybacks | $38.1M | $227M | ×5.96 |
The larger of the two figures is in bold. Larger is not automatically better: on debt, cost and tax a bigger number is simply a bigger number. This site reports the figures and leaves the judgement to you.
Revenue, year by year
Iron Mountain · 2016–2025
Simon Property · 2011–2025
Every row links to its own SEC filing · Fiscal year 2025 · Data as of September 25, 2026
Cite this page
Ready-made references for the figures on this page, as published on September 25, 2026.
Wikipedia
{{cite web |title=Iron Mountain vs Simon Property |url=https://companiesranked.com/en/compare/iron-mountain-vs-simon-property |website=CompaniesRanked |date=2026-09-25 |language=en}}APA 7
CompaniesRanked. (September 25, 2026). Iron Mountain vs Simon Property. CompaniesRanked. https://companiesranked.com/en/compare/iron-mountain-vs-simon-propertyBibTeX
@misc{companiesranked-en-compare-iron-mountain-vs-simon-property-2026,
author = {{CompaniesRanked}},
title = {{Iron Mountain vs Simon Property}},
year = {2026},
howpublished = {\url{https://companiesranked.com/en/compare/iron-mountain-vs-simon-property}},
note = {Compiled from SEC EDGAR XBRL filings; data as of 2026-09-25},
urldate = {2026-09-25}
}The figures are rebuilt with every data refresh, so the reference carries the publication date. Add your own access date if your style requires one.