AI capex is rewriting the real estate map, and data center REITs sit at the center of it. Here's how Equinix, Digital Realty, Iron Mountain, and American Tower actually compare on growth, yield, and risk right now — built entirely from verifiable filings, exchange data, and named analyst sources.
Few corners of the stock market have a more compelling pitch in 2026 than data centers: the largest technology companies on earth are pouring hundreds of billions of dollars into the physical buildings that run their AI models, and REITs are the most direct, liquid way for an ordinary investor to own a piece of that build-out. But a compelling story isn't the same as a good entry price — this guide walks through the real numbers.
Why data center REITs, why now
The demand story is no longer speculative. Amazon and Alphabet alone are expected to spend a combined $400 billion on capital expenditure in 2026, largely on AI infrastructure, and Dell'Oro Group projects global data center IT capital expenditure will exceed $1 trillion this year. Data center REITs are the landlords collecting rent on that build-out — they own the specialized, power-dense buildings that hyperscalers lease under long-term contracts rather than build and operate themselves.
What a data center REIT actually is
A data center REIT owns and operates the physical facilities that house servers, networking equipment, and cooling systems for cloud providers, enterprises, and AI training clusters. Revenue comes from long-term lease agreements — typically five to fifteen years — with hyperscalers like AWS, Microsoft Azure, and Google Cloud, plus colocation customers who pay for rack space, power, and network connectivity. Like any REIT, these companies are structured to distribute at least 90% of taxable income to shareholders as dividends, which is why yield is part of the pitch even for a growth-heavy sector like this one.
According to Nareit, only two data center REITs are larger than micro-cap as of early 2026, which is worth keeping in mind: this is a concentrated sector dominated by a small number of names, not a broad basket.
Top data center REITs to watch in 2026
Three names dominate the pure-play conversation, with two more worth knowing depending on how you want your exposure structured.
Equinix
NASDAQ: EQIXThe largest and most interconnection-heavy name in the sector. Equinix spans six continents with 281 data centers supporting roughly 513,000 connections, and that density is the moat: the platform gets more valuable to every customer as more customers join it. Q2 2026 revenue rose 16.4% year over year, and management raised its long-term growth target to 10–13% annual revenue growth through 2029. The flagged risk on the same call: power constraints and labor shortages in data center expansion.
Digital Realty Trust
NYSE: DLRThe broadest full-spectrum operator, offering everything from network-dense retail colocation to massive hyperscale build-to-suit capacity. Q2 2026 revenue came in at $1.92 billion, and HSBC upgraded the stock to Buy on the back of a shift toward double-digit core FFO-per-share growth over multiple years — up from at least mid-single-digit growth previously guided. 2026 capital expenditure guidance has risen 29% at the midpoint since the start of the year, and the backlog stands at 30% of current revenue, a meaningful forward-revenue signal.
Iron Mountain
NYSE: IRMThe diversified play. Iron Mountain's core business is still records management, but its data center "growth portfolio" is expanding over 20% annually and approaching 30% of total revenue. Data center revenue alone is nearing $800 million, with analysts forecasting it to top $1 billion in 2026. The stable records-management cash flow effectively subsidizes the buildout, giving Iron Mountain a different risk profile than the two pure-plays above.
American Tower
NYSE: AMTPrimarily a communications-tower REIT with a growing Data Centers segment layered on top. One Seeking Alpha analysis names it the top pick for new data center exposure specifically because it trades at a discount to DLR and EQIX while still offering integrated connectivity-plus-compute upside — a different entry point than buying the two names everyone already owns.
Performance & valuation snapshot
| Metric | Equinix (EQIX) | Digital Realty (DLR) |
|---|---|---|
| P/E ratio | ~68–76x | ~96x |
| 2026 revenue signal | Q2 revenue +16.4% YoY | Q2 revenue $1.92B; capex guidance raised 29% |
| Analyst price target | Raised to $1,400 (HSBC, Aug 16, 2026) | Consensus ~$219–223; raised to $240 at Evercore ISI |
| Payout ratio | ~128% of earnings | Elevated — typical for growth-stage REITs |
The diversified option: ETFs
Single-stock risk is real in a sector this concentrated. The Global X Data Center & Digital Infrastructure ETF (DTCR) tracks the Solactive Data Center REITs & Digital Infrastructure Index, holding $2.23 billion in net assets with a 0.50% expense ratio. Its top holdings are Equinix, Digital Realty, and American Tower — so it isn't a way to avoid the big names, but it does spread the position-sizing decision across the sector rather than betting on one ticker.
Risks worth weighing
"The big risk is the rich valuations that these REITs have," one portfolio strategist told U.S. News. "Any hiccups — and if spending were to slow — these REITs would see their respective stocks get hurt." Separately, prominent short-seller Jim Chanos has publicly argued that Equinix and Digital Realty "are not great businesses" at current multiples — a dissenting view worth reading alongside the bullish coverage, not instead of it.
The structural risk sits below the balance sheet entirely: power. Every major data center operator now describes grid access and interconnection timelines — not capital availability — as the binding constraint on growth. We go deeper on that specific bottleneck in our companion piece on hyperscale vs. edge data center investment.
How to evaluate a data center REIT
Whichever names you shortlist, the criteria that separate durable operators from vulnerable ones are consistent across every source we reviewed: secured power access, desirable locations near population and network hubs, sustainable multi-year lease demand, manageable debt, and enough financial strength to fund developments that can run into the billions.
Frequently asked questions
They've delivered strong returns — all three major pure-plays beat the broader REIT sector and most growth-equity indices over the trailing 12 months through April 2026. But valuations are historically rich, and several analysts specifically flag that any slowdown in AI capital spending would hit these stocks harder than most.
Among the major names, American Tower yields roughly 4%, ahead of Digital Realty's ~2.4–2.6% and Equinix's ~1.9–2.0%. Higher yield in this sector often correlates with a lower growth multiple rather than lower quality, so yield alone shouldn't be the only screen.
Equinix leads on interconnection density and carrier-neutral network effects; Digital Realty leads on scale and full-spectrum offerings, from retail colocation to massive hyperscale build-to-suit campuses. Many diversified portfolios end up holding both rather than choosing one.
Yes — the Global X Data Center & Digital Infrastructure ETF (DTCR) is the main dedicated option, holding Equinix, Digital Realty, and American Tower as its top positions with a 0.50% expense ratio.
Our methodology
Every figure in this article is sourced from a named, checkable source — company investor relations pages, SEC filings, live exchange data (Yahoo Finance, CNBC, CoinGecko market data), and named analyst commentary from outlets including U.S. News, Seeking Alpha, and The Motley Fool. We did not use estimated or AI-generated financial figures anywhere in this piece.
- Stock prices and market caps are snapshot figures as of August 18–19, 2026 and will drift — always confirm live pricing with your broker before acting.
- Dividend yields are trailing-twelve-month figures compiled from multiple data providers; small variances between sources reflect different snapshot dates.
- Where sources disagreed (for example, differing DLR market-cap figures across providers), we used the most recent, most directly sourced figure and noted the range rather than picking a single number to imply false precision.
- This article is reviewed and updated periodically as new quarterly results are released — check the "Updated" date at the top for currency.
Sources
Data compiled from the following primary and named sources (accessed August 19–20, 2026):
- The Motley Fool — "Best Data Center REITs for 2026 and How to Invest"
- U.S. News & World Report — "5 Best Data Center REITs to Invest in Digital Infrastructure" and "7 Best Data Center Stocks, ETFs and REITs"
- Ad-Hoc News (company filings coverage) — Digital Realty Trust stock price, market cap, and Q2 2026 results, Aug 18, 2026
- Yahoo Finance, CNBC, CoinGecko, StockAnalysis.com — live EQIX and DLR quotes, market cap, and dividend data
- Seeking Alpha — "Data Center REITs: One Of My Highest-Conviction Calls," including the American Tower and Jim Chanos commentary
- Angel Investors Network — "Data Center REITs 2026: 39-45% AI Infrastructure Returns," 12-month total return figures
- Intellectia.ai — Iron Mountain data center segment revenue and capacity figures
- Data Centre Magazine — "Top 10: Data Centre Real Estate Companies," Keppel DC REIT profile
- Global X ETFs — DTCR fund fact sheet, net assets, and holdings
- National Association of Real Estate Investment Trusts (Nareit) — sector-size context, early 2026
