Crypto & DeFi

    Uniswap and Spark Launch DualPool, a Hook That Pays Yield on Idle Liquidity

    The DualPool hook is live on Uniswap v4, letting market makers earn lending yield on stablecoin inventory in Spark's vaults until a trade needs it, targeting DeFi's idle-capital problem.

    By Aaron Rafferty·WYDE Newsroom· 2 min read
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    Uniswap and Spark Launch DualPool, a Hook That Pays Yield on Idle Liquidity

    Key Takeaways

    • Uniswap and Spark launched the DualPool hook on Uniswap v4, letting liquidity earn lending yield until a swap needs it.

    • Idle stablecoins sit in Spark's yield vaults and move into Uniswap pools only when a trade executes, tackling DeFi's idle-capital problem.

    • The first deployment pairs Sky's USDS with Tether's USDT and PayPal's PYUSD as part of a $150 million liquidity migration.

    The DualPool hook is now live on Uniswap v4, a design from Uniswap and the lending protocol Spark that lets market makers earn yield on their stablecoins right up until a trade needs them, Crypto Briefing reported after the code cleared an audit.

    Here is the problem it targets. In most trading pools, the money sitting there waiting to fill trades earns nothing while it waits. DualPool keeps that liquidity in Spark's yield-bearing vaults and pulls it into the Uniswap pool only at the moment a swap executes. Providers earn during the idle stretches without pulling their money out of the market.

    The first deployment uses Sky's USDS as the base asset, paired with Tether's USDT and PayPal's PYUSD, the plumbing for converting one stablecoin into another. It is part of the roughly $150 million in liquidity Spark moved onto Uniswap v4 for this purpose.

    Capital efficiency sounds like a small idea. It is one of the biggest in decentralized finance, because idle money is the tax that has always made onchain markets more expensive to run than they should be. A pool that earns while it waits changes that math. For everyday users, the payoff shows up as deeper liquidity and tighter prices when they swap one stablecoin for another.

    The move builds directly on the stablecoin FX layer Uniswap and Spark launched with $150 million in liquidity. It also fits a year in which DeFi yield keeps getting wired into more products, from Robinhood bringing yield into its own chain and app to record stablecoin settlement volume. Worth watching how much idle capital DualPool can wake up.

    People Also Ask

    What is the DualPool hook?

    DualPool is a Uniswap v4 hook from Uniswap and Spark that lets liquidity earn lending yield in Spark's vaults until a trade needs it in the pool.

    How does DualPool improve capital efficiency?

    It stops trading liquidity from sitting idle by keeping it in yield-bearing vaults and moving it into the pool only when a swap executes.

    Which stablecoins does DualPool use?

    The first deployment pairs Sky's USDS as the base asset with Tether's USDT and PayPal's PYUSD.

    How much liquidity is behind DualPool?

    It is part of roughly $150 million in liquidity that Spark migrated to Uniswap v4.

    innovationcrypto & defi
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