Stablecoins' Massive Treasury Holdings Redraw Fiscal Risk Landscape

The growth of stablecoins backed by US Treasuries is transforming the way sovereign obligations are absorbed by markets, with significant implications for Treasury market dynamics and fiscal risk. At present, stablecoin issuers like Tether (USDT) and Circle (USDC) hold massive amounts of short-dated US Treasury securities in their reserve portfolios.

Tether alone held approximately $113 billion in US Treasury exposure by 2024, with roughly 66% allocated to short-dated T-bills. This figure rivals or exceeds the Treasury holdings of a substantial number of mid-sized sovereign nations, placing private digital asset issuers among the most systemically significant buyers of US government short-term debt.

The GENIUS Act has established formal reserve eligibility requirements for stablecoin issuers operating under US regulatory oversight. Eligible reserve assets include cash, demand deposits at qualifying institutions, short-maturity US Treasury securities, and qualifying collateralised repo agreements.