Sonic Labs has launched USSD, a new stablecoin pegged to the U.S. dollar. Announced on March 9, 2026, USSD operates on the Sonic network and is backed 1:1 by short-term U.S. Treasury assets, offering genuine financial backing from traditional markets.

The stablecoin is designed to provide cross-chain liquidity and a stable dollar asset for decentralized finance (DeFi) applications within the Sonic ecosystem. Users can mint USSD directly on the Sonic network by depositing dollar-based assets at a 1:1 ratio, facilitating entry for DeFi users and liquidity providers. This allows for seamless fund movement and transaction settlement across different blockchain networks.

Sonic Labs indicated that the Treasury assets supporting USSD have the potential to generate future revenue, which could be reinvested into ecosystem incentives, developer programs, and network growth. The launch signifies an effort to integrate traditional financial assets with blockchain infrastructure, positioning USSD as a potential central financial layer for the Sonic DeFi economy.