SUSD/USD price feed
sUSD is the dollar of the Synthetix system, minted against staked collateral rather than against reserves. It is one of the oldest synthetic dollars still trading, which makes its book a long-running experiment in what backing-by-collateral does to a peg.
History for this pair is accumulating since 2026-08-20: the chart renders automatically once enough observations exist. The live rate is available over the API today.
A dollar backed by volatility
Reserve dollars hold assets that are already dollars. A synthetic like this one stands on collateral that moves, with overcollateralization absorbing the difference, so its peg behavior carries the collateral's temperament inside it.
Years of trading have given this book scars and recoveries that newer designs have not yet earned. A continuous reading through both is what makes the design assessable at all.
This page keeps that reading current, taken where the dollar trades.
Who runs on this rate
Analysts comparing dollar designs
The oldest synthetic in the field is the longest data series on collateral-backed pegs.
Desks trading protocol dollars
Collateral temperament shows in the book before it shows in announcements.
SUSD in the catalog
4 pairs, each computed from its own pools with the same methodology:
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