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Spark has migrated $150M of its stablecoin liquidity to 
Uniswap v4 in one of the largest AMM liquidity migrations in DeFi history. The move will let Spark capitalize on its new programmable hook called DualPool, which is designed to keep idle stablecoin inventory earning yield between swaps.
What's the Scoop?
- The big idea: Spark is positioning this release as the foundation of a "Stablecoin FX Layer," i.e. shared liquidity infrastructure for a world where 100s of stablecoins from banks, fintechs, and beyond all need their own market depth. The initial deployment covers USDS, USDT, and PYUSD liquidity, with USDS as the primary quoting asset.
- The DualPool : DualPool parks liquidity in Spark's ERC-4626 yield vaults between swaps, then pulls exactly the capital needed into a concentrated liquidity position at the moment a trade arrives before returning it to the vault in the same block once the swap settles. For swappers the experience is identical to any normal Uniswap pool, but for LPs, the same capital does two jobs simultaneously.
- Why now: Stablecoin issuance is accelerating across TradFi. PayPal, Revolut, Visa, Mastercard, Stripe, and major European and Japanese banking consortiums are all building around stablecoins in various capacities. The argument Spark is making is that the industry's issuance problem is largely solved, and solving the coordination and liquidity problem is what comes next. Their answer is shared programmable infra.
