DeepBook is a decentralized central limit order book (CLOB) built on Sui. DeepBook leverages Sui's parallel execution and low transaction fees to bring a highly performant, low-latency exchange on chain. DeepBook’s main competitive edge is that it is fully on-chain. All order routing, matching, and settling occur on-chain, delivering a trading venue that maximally leverages the benefits of programmability, interoperability, and composability. DeepBook v3 delivers a trading venue that is even more performant and that integrates seamlessly as the wholesale liquidity venue for the overall DeFi ecosystem.