The expansion to OP Mainnet and Unichain will lay the groundwork for native interoperability between ecosystems.
Onchain capital allocator Spark announced its expansion to Optimism’s OP Mainnet and Uniswap’s L2 network, Unichain, introducing saving yields for USDC and USDS through the Spark Liquidity Layer.
Spark’s Savings Vault will issue two new yield-bearing stablecoins backed by deposits of sUSDC and sUSDS respectively. These tokens offer a 4.5% APY via the current Sky Savings Rate, accruing yield and serving as productive collateral across DeFi protocols like Euler.
“We’re entering a phase where yield, liquidity, and application logic must move fluidly across ecosystems. Unichain, as a DeFi-optimized Layer-2 hub, is the ideal foundation for bootstrapping a cross-chain liquidity layer, where assets and yield can flow frictionlessly between interconnected chains. Spark received 2 million OP from the Optimism Grants Council during Season 7, supporting ecosystem incentives and Superchain native interoperability,” said Sam MacPherson, CEO and Co-Founder of Phoenix Labs.
“The Superchain is the home for DeFi, and Spark helps accelerate that vision by unlocking new levels of capital efficiency for the ecosystem. With the Spark Liquidity Layer now live on OP Mainnet and Unichain, we’re a step closer to our vision for a unified, composable DeFi system across the Superchain,” said Adoni Ioannou, Business Development & Strategy Lead at Optimism.
As part of this rollout, Spark is also working with OP Labs to integrate native cross-chain interoperability, including single-block messaging and mint/burn mechanics for sUSDC and sUSDS.
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