Tether (USDT) is designed to maintain a precise 1:1 peg with the US dollar. This means every USDT token in circulation is backed by $1 worth of reserve assets held by Tether Limited. The peg mechanism relies on a straightforward issuance and redemption model: when users deposit USD, new USDT is minted; when users redeem USDT, those tokens are burned and the equivalent USD is returned.
Every Tether token is 100% backed by Tether's reserves, which consist primarily of US Treasury Bills, cash, and cash equivalents.
The reserve composition is published quarterly on Tether's transparency page and includes short-term US Treasury Bills, overnight repo agreements, cash, bank deposits, and a small allocation to precious metals and Bitcoin. This multi-asset backing ensures that even during market stress, Tether has sufficient liquidity to process large redemptions.
Arbitrage and Market Forces
Market arbitrageurs play a critical role in keeping USDT close to $1. If USDT trades below $1 on an exchange, large holders can purchase discounted tokens and redeem them at face value through Tether's platform, profiting from the difference and simultaneously pushing the price back toward parity. The reverse occurs when USDT trades above $1, where users buy USD and mint new USDT. This two-way arbitrage mechanism ensures tight price stability under normal market conditions.
- Issuance: USD deposited → USDT minted 1:1
- Redemption: USDT returned → USD released 1:1
- Arbitrage corrects any temporary price deviations
- Reserve assets are independently attested quarterly