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Fortune
Fortune
Nick Lichtenberg

Moody’s flags $662 billion risk at the heart of the data center build-out by just 5 companies

data center (Credit: George Frey—Bloomberg/Getty Images)

The technology sector’s frantic race to build artificial intelligence infrastructure has created a massive, financial overhang. According to a recent in-depth report by Moody’s Ratings, the top five U.S. hyperscalers have accumulated $662 billion in future data center lease commitments not yet begun that are not current liabilities and therefore sit entirely off their balance sheets. As those leases begin over the next several years, and as landlords’ obligations are fulfilled, that more than half a trillion dollars’ worth of data center activity will be recorded on balance sheets.

The report, which analyzed the financial disclosures of Amazon, Meta, Alphabet, Microsoft, and Oracle, highlights how the unprecedented build-out of AI data centers is straining traditional accounting metrics. As of the end of 2025, these five tech giants had amassed a staggering $969 billion in total undiscounted future lease commitments, or data centers that have yet to be built. However, more than two-thirds of this total, that $662 billion figure, is for leases that have yet to commence, meaning that under generally accepted accounting principles, or GAAP, these companies are not required to recognize these massive obligations on their current balance sheets.

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