Iron Mountain (IRM) Stock Holds Near Highs As AFFO Guidance Climbs

Iron Mountain stock barely flinched after earnings, slipping about 1% to sit near recent highs. For a real estate investment trust, the headline is not the share price. It is that adjusted funds from operations, or AFFO, reached about US$433 million in the quarter and management lifted full year revenue and cash flow guidance again.

Short term traders see a flat tape. Long term investors are looking at a business that now leans more on data centers, asset lifecycle management and digital services. That evolving mix is reshaping the company’s growth profile, its risk characteristics and how the market may assess what this REIT is worth over the next several years.

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Q2 2026 Earnings Summary

• Revenue (Q2 2026 vs. Q2 2025): US$2,029.1 million vs. US$1,711.9 million (up about 19%)
• Net Income (Q2 2026 vs. Q2 2025): US$101.4 million vs. a loss of US$44.9 million (returned to profit)
• Basic EPS (Q2 2026 vs. Q2 2025): US$0.34 per share vs. a loss of US$0.15 per share (returned to positive earnings per share)
• Funds From Operations, or FFO, (Q2 2026 vs. Q2 2025): US$226.7 million vs. US$62.1 million (up sharply, more than triple)

Prefer clean charts instead of scrolling through another wall of earnings tables and footnotes? See Iron Mountain’s full financial picture, including how its valuation stacks up after this quarter, in our company report for Iron Mountain.

Iron Mountain’s Growth Thesis Clears Key Hurdles

Bulls argue Iron Mountain can use steady records storage to build a broader information infrastructure platform in data centers, ALM and digital. Q2 gives that story concrete milestones. Growth businesses collectively now contribute about 35% of revenue, roughly 750 basis points higher in a year, which directly supports the mix shift narrative. Data center revenue of US$263 million, up 39% y/y, is backed by 110 MW of leasing year to date and strong renewal pricing in the low teens, which aligns with claims of durable demand and pricing power. ALM revenue of US$288 million, up 88% y/y with organic growth above 80%, plus guidance that ALM revenue should approach US$1b for 2026, shows the newer engine is scaling, not just flashing. AFFO of US$433 million and higher full year cash flow guidance round out a quarter that supports the bullish execution case.

Bear Concerns On Leverage, Cyclicality And Valuation

Bears worry that Iron Mountain’s transformation relies on heavy capital spending, a stretched balance sheet and potentially overheated expectations after a strong share price run and insider selling. Q2 does little to support a “stalled execution” story. Net lease adjusted leverage stands at 4.8x, which is the lowest level since before the 2014 REIT conversion, and management refinanced with US$1.5b of 2035 senior notes that carry investment grade style covenants. That helps address near term liquidity and funding concerns. At the same time, reported growth in data centers and ALM depends on lumpy hyperscale projects, which management itself flags, and ALM margins remain exposed to volatile memory pricing. The stock has recently pulled back slightly after earnings, and earlier commentary about rich valuation and insider selling still hangs over the story. The print weakens the operational bear case, while more sentiment driven concerns remain unresolved.

After a quarter that eased some operational doubts around growth projects and leverage, unresolved questions around interest cover, dividend funding and negative equity raise the possibility that current concerns are only part of the story. Review our independent risk analysis for Iron Mountain which shows 4 important warning signs

Take Control of Your Next Move

If Iron Mountain’s mix of records storage, data centers and ALM has your attention, register for free with Simply Wall St and add it to a Watchlist to track price against fair value and watch how the thesis develops. After you decide to take a position, use the Portfolio Command Center to cut through market noise and stay on top of the updates that matter most to your holdings. For a longer term view, tap into the shared experience of other investors through the Community and see how different viewpoints stack up against your own. By spotting potential catalysts and risks early, you give yourself a better chance of staying ahead of the market.

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

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