Own the Real Estate

Data center REITs are the financial infrastructure of the AI buildout. They own and operate the physical buildings that house AI compute. Their business model — long-term leases with power pass-throughs — means they capture the real estate value of the AI buildout without bearing the technology risk of which GPU or which cloud provider wins.

Equinix is the global leader with 260+ data centers across 72 metros on 6 continents. Their interconnection business (cross-connects between tenants) creates network effects: the more tenants in an Equinix facility, the more valuable it is for new tenants who need to connect to existing ones. Digital Realty is the second-largest, with a focus on hyperscale leases — entire buildings dedicated to a single cloud provider.

Prologis represents a new entrant pattern in this layer. As the world's largest industrial REIT, they control an enormous land bank near existing power and fiber infrastructure. Their strategic pivot into data center development leverages logistics warehouse sites that already have utility connections, access roads, and municipal approvals — converting them into data center campuses far faster than greenfield development allows. This land-bank-to-data-center pipeline could make Prologis a top-tier AI infrastructure REIT within 3-5 years.

Iron Mountain has pivoted from document storage to data center development, leveraging their existing real estate portfolio and power contracts. American Tower and Crown Castle are cell tower REITs expanding into edge data center locations — smaller facilities closer to end users for inference workloads.

The Power Grid Reckoning trend creates a structural advantage for existing REIT portfolios: their facilities already have utility interconnections and power contracts. New entrants must wait 5-10 years for grid connections. This makes existing powered data center real estate increasingly valuable — a scarce asset whose supply cannot be easily expanded. The REIT premium is really a power-access premium.

The risk for this layer is hyperscaler self-build. Amazon, Google, and Microsoft increasingly construct their own campuses rather than leasing from REITs. This shifts REIT growth toward enterprise and mid-market customers who can't justify self-build economics. Vacancy rates near zero and rental rates rising 15-30% YoY signal that demand still far outstrips supply — but the customer mix is evolving.