Siren

Siren is a decentralized protocol for creating, trading, and redeeming fully-collateralized options contracts for ERC20 tokens on Ethereum. It offers a platform for sophisticated traders to engage in cryptocurrency derivatives trading with self-custody and composability. Siren provides tools for building and optimizing trading strategies, continuous security audits, and open-source contracts. The protocol combines off-chain matching with on-chain settlement, offering competitive pricing and execution comparable to centralized exchanges.