Synthetix founder Kain Warwick has acknowledged that sUSD has been depegged for over a year, taken personal responsibility for treasury mismanagement, and published a detailed thread this morning explaining the path forward: winding down the $SNX-backed stablecoin and replacing it with a basis-vault-backed instrument powered by the protocol’s new v4 exchange.
Warwick’s eleven-tweet thread follows governance’s passage of SIP-423, covered earlier today by The Defiant, which would freeze the sUSD contract and pay holders four $SNX per sUSD. In the thread, Warwick goes further than the SIP itself, framing the depeg as a multi-factor failure and detailing the reasoning behind every step.
30% Treasury Accumulation
The protocol’s treasury has absorbed roughly 30% of outstanding sUSD supply over the past year, according to Warwick’s thread. Yet he says that buying back the rest is not an option: selling $SNX at current prices to retire the remaining sUSD would be value-destructive, and there is no demand for locked $SNX that would allow the protocol to repeg without deepening that discount.
Warwick noted that locking $SNX at today’s price implies a 75% discount against the liquid token, “which given the state of the token market is probably accurate.” At the time of publication, $SNX trades at $0.2426, per CoinGecko, and sUSD is quoted at $0.25, or roughly 75 cents below its $1.00 target.
The 420-Pool Call
On the 420 pool, Warwick’s assessment is direct. Introducing the mechanism “very likely saved the protocol from a death spiral at the cost of the sUSD peg.” $SNX holders absorbed that cost; the thread frames sUSD as a liability of $SNX holders specifically, which is why the SIP-423 wind-down uses $SNX rather than cash to make holders whole.
What Went Wrong
Warwick attributes the depeg to three compounding failures. The v3 exchange was, in his words, “a dumpster fire.” The v4 build took far longer to scale than anticipated. Yield generation on sUSD balances, a mechanism intended to create buy-side demand for the stablecoin, failed to materialize.
The combination left sUSD exposed. Supply had once exceeded $1 billion across sUSD and other synths; an orderly wind-down got it to roughly $50 million, but Warwick describes the remaining tail as “functionally insolvent” without exchange revenue to backstop it.
“As the founder the responsibility for this mismanagement is mine,” Warwick wrote.
Basis-Vault Replacement
The forward-looking piece of the thread is the replacement design: sUSD as a debt instrument backed by $SNX is being wound down and replaced by a basis-vault-backed stablecoin, intended to run on the v4 exchange on Ethereum mainnet.
The design differs structurally from sUSD. A basis-vault stablecoin earns yield from funding-rate arbitrage between spot and perpetual positions, rather than requiring collateral in a volatile governance token. Warwick did not specify a launch timeline or target supply for the replacement.
Perp Meta, Missed
Warwick’s self-critique centers on a specific market window. Synthetix had the architecture and the community to compete in the 2023-2024 on-chain perpetuals expansion. Instead, v3 development problems slowed the exchange, and purpose-built perp venues captured the growth.
“Synthetix was positioned almost perfectly to take advantage of the Perp Dex meta, but we fumbled hard,” Warwick said. He added he remains a holder of both $SNX and sUSD, describing both as “max pain since 2022.” He closed the thread expressing confidence in a recovery, though he acknowledged the market is not currently pricing one in.
Synthetix’s total value locked stands at $32.5 million, per DefiLlama, with virtually all of that on Ethereum. $SNX carries a market capitalization of $83.6 million, per CoinGecko.
