Fluid

Fluid is a decentralized finance (DeFi) protocol built by the Instadapp team that functions as a unified, cross-chain liquidity layer integrating lending, borrowing, and decentralized exchange (DEX) trading into a single capital-efficient system. Launched in October 2023 on Ethereum and expanded to Solana, BNB Chain, and Arbitrum, Fluid's core innovations — Smart Collateral and Smart Debt — allow deposited assets and borrowed positions to simultaneously serve as active DEX liquidity, achieving up to 39x capital efficiency on select trading pairs. The protocol powers institutional-grade lending markets for major stablecoin and real-world asset issuers, and reached $5.1 billion in total market size by early 2026.