Tether-Linked USAT Stablecoin Passes First Big Four Reserve Attestation

The filing, issued through Anchorage Digital Bank, is the first Big Four reserve engagement tied to a Tether vehicle.

Reserve Composition

Cash holdings totaled $3.65 million. The remaining $13.95 million sat in reverse repurchase agreements collateralized by U.S. Treasury securities, with maturities running January 30 through February 2 and held through a U.S. broker-dealer. Cash balances were parked in bank and brokerage accounts carrying standard federal insurance protections, though some balances exceeded those coverage limits. Per the report: "All USAT-issued tokens are redeemable. There are no temporary or permanent USAT nonredeemable tokens."

Regulatory Frame

USAT runs on Ethereum at a 1:1 dollar peg. Structuring was built around the GENIUS Act, enacted July 2025, which constrains permissible backing assets and routes larger issuers toward federal oversight. Market cap has moved toward $20 million since the January launch. Scope note: the engagement is an attestation, not a financial statement audit, and does not extend to internal controls or issuer solvency beyond the stated reserve criteria.

Adjacent Signals

Banca d'Italia has circulated a working paper on stablecoin remittance corridors, per Global Finance Magazine. Separately, coverage over a 48-hour window tracked roughly $3 billion in combined stablecoin issuance across Circle and Tether against rising on-chain dollar demand. For balance-sheet observers, the operational checkpoints are the next USAT attestation cycle, the trajectory of the repo collateral mix, and any movement on the GENIUS compliance perimeter for non-USAT Tether products.