Synthetix sUSD (SUSD)

The token is closely tied to Synthetix, a derivatives liquidity protocol that supports synthetic assets and decentralised trading infrastructure. Users who mint synthetic assets in Synthetix typically do so against collateral, and sUSD functions as one of the system’s core units of account. It can be used for trading, settlement, liquidity provision, and movement between DeFi applications that support the asset.

Unlike fiat-backed stablecoins that depend on reserves held by a central issuer, sUSD relies on the design of the Synthetix protocol, collateralisation rules, market incentives, and oracle-fed pricing to help maintain its dollar peg. This makes it more decentralised in structure, but also exposes it to risks associated with smart contracts, collateral volatility, liquidity conditions, and the stability of the wider protocol.

For investors and DeFi users, sUSD is most distinctive as a synthetic stable asset built for on-chain derivatives markets. Its value proposition is not simply dollar tracking, but its role as settlement liquidity inside a protocol designed to bring synthetic exposure and derivatives trading to public blockchains.