Ithaka is a non-custodial composable option protocol with a mission to establish permissionless cross-chain infrastructure for optimal risk sharing across time and event horizons. The protocol enables the instant deployment of liquidity self-enhancing, complete, and composable options, structured products, and lending markets on any underlying asset, forming the Ithaca Ecosystem with features such as an Option Trading Protocol, Algorithmic Market Maker, Collateral Optimization Engine, cross-chain interoperability powered by Axelar, and upcoming additions like a market-clearing consistent margin lending and liquidation mechanism, as well as Decentralized Protocol Governance.