Uniswap Integrates Swap and Liquidity Infrastructure with Arc

Uniswap Labs has introduced the **DualPool hook**, a new feature that allows liquidity providers to earn yield on their assets while maintaining pool availability. **How it works:** - LPs deposit assets into a yield-generating vault - When a trader initiates a swap, the hook automatically pulls assets from the vault - Funds are returned to the vault within the same block after the swap completes This innovation builds on Uniswap v4's hooks architecture, which enables custom logic for pools and swaps. The DualPool hook was developed in collaboration with the Uniswap Labs engineering team. The mechanism ensures capital efficiency by letting LPs earn passive income during idle periods while keeping liquidity accessible for swappers on demand.

Spark has completed one of the largest liquidity migrations in DeFi history, moving $150 million to Uniswap's protocol. The funds are being deployed to build stablecoin infrastructure on the platform. **Key Details:** - The liquidity will transition to Spark's new DualPool hook - DualPool enables earning on both active trading positions and idle assets - This follows Fidelity's recent move to launch stablecoin pools on Uniswap **Background:** Spark previously partnered with PayPal to grow PYUSD supply by $1 billion, demonstrating their stablecoin bootstrapping framework. Their Liquidity Layer can dynamically manage capital across lending markets and DEXs, backed by Sky's $8+ billion balance sheet. The migration positions Spark as a major infrastructure provider for institutional stablecoin operations on Uniswap.

Spark has moved $150 million in liquidity to Uniswap V4, utilizing a new custom hook that's currently under audit. **Key Details:** - The hook will be open-sourced after security audits complete - Demonstrates V4's flexibility for teams to build custom market structures - Showcases practical implementation of Uniswap's hooks concept This migration represents a significant real-world application of V4's hooks feature, which allows developers to inject custom logic into pools, swaps, fees, and LP positions. [Read the full announcement](https://blog.uniswap.org/spark-moves-150m-of-liquidity-to-v4-with-new-hook-coming-soon?utm_medium=social&utm_source=tw&utm_campaign=spark-announcement-202606)

Uniswap has launched a token auction feature directly in its web app, now live on Ethereum, Arbitrum, Base, and Unichain. **Key features:** - Teams can launch token auctions without writing code - Uses Continuous Clearing Auctions for price discovery - Provides transparent distribution and instant liquidity - More chains planned for future support This follows Uniswap's recent addition of tokenized securities (stocks, bonds, yield-bearing assets) to its platform, expanding access to traditional financial assets onchain.