BlackRock and unnamed partners have moved into exclusive negotiations to acquire Stack Infrastructure's Asia-Pacific data center portfolio for between $20 billion and $25 billion, making it the largest data center transaction ever recorded. The discussions center on operational facilities serving hyperscale cloud tenants across Singapore, South Korea, Japan, and Australia.
Stack Infrastructure operates 21 data centers across the region with roughly 1.2 gigawatts of critical IT capacity, most deployed in the past 36 months to meet AI training and inference demand. The facilities already host contracted capacity from Microsoft Azure, Google Cloud, and Oracle Cloud Infrastructure. BlackRock's Infrastructure Capital Partners, which raised $17 billion in its fourth fund last year, is leading the consortium. The firm has not disclosed co-investors, though prior data center deals have included Singapore's GIC and Canada Pension Plan Investment Board.
The deal matters because it prices data centers as institutional-grade infrastructure rather than speculative tech bets. At $25 billion, the transaction values Stack's portfolio at roughly $20,833 per kilowatt of critical capacity, a 40 percent premium to last year's Digital Realty acquisition benchmarks. That premium reflects three shifts. First, hyperscaler lease terms now run 10 to 15 years with annual escalators tied to power costs, making revenue streams predictable enough for insurance capital. Second, AI workloads have pushed utilization rates above 92 percent in tier-one Asian markets, eliminating vacancy risk. Third, land-constrained markets like Singapore and Tokyo have created artificial scarcity—Stack controls 140 megawatts of permitted but unbuilt capacity in Singapore alone, where new data center moratoriums remain in effect.
The timing also matters. Stack's private equity owners, IPI Partners and Mercuria Energy, acquired the business in 2019 for $1.1 billion. This exit would return roughly 22x invested capital in five years, driven almost entirely by capacity expansion rather than operational improvement. That return profile will accelerate institutional competition for data center assets, particularly in Asia-Pacific where power grid access and cooling infrastructure create higher barriers than U.S. markets. It also confirms that AI infrastructure has moved from venture-backed speculation to the same asset class as toll roads and regulated utilities.
Operators should monitor three follow-on events. First, whether BlackRock syndicates equity stakes to sovereign wealth funds, which would confirm that $10 billion-plus data center platforms now trade as benchmark infrastructure. Second, power purchase agreements in Singapore and Japan—Stack's largest facilities run on 80 percent grid power, and securing renewable allocations will determine whether the assets qualify for ESG-mandate capital. Third, lease renewal negotiations with Microsoft and Google, both of which have clauses allowing capacity reduction if AI model efficiency improves faster than expected. Those renewals begin in Q2 2026.
Stack's private equity sellers priced the exit at 18.2x forward EBITDA, a multiple previously reserved for fiber networks and cell towers, not facilities with 25-year depreciation schedules and exposure to semiconductor cycle risk.
The takeaway
BlackRock's $25 billion data center bid prices AI infrastructure as institutional real assets, setting a new benchmark for hyperscale capacity valuations.
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