Spark is an on-chain capital allocator that deploys capital across DeFi, CeFi, and Real-World Assets. It utilizes its Spark Liquidity Layer to automatically balance allocations based on market conditions, sourcing liquidity from significant stablecoin reserves to maintain a conservative risk profile.

The protocol packages yield into products like sUSDS and sUSDC, offering users programmable, fee-free income. Its ecosystem includes SparkLend for stablecoin lending with governance-defined rates and Spark Savings for earning yield on stablecoins. The system acts as liquidity infrastructure, supplying capital to other major DeFi protocols.