$SIREN (SIREN) is a specialized decentralized finance (DeFi) protocol designed for options trading, allowing users to create, trade, and settle fully-collateralized options contracts on any ERC-20 token. Launched in late 2020 on the #Ethereum and #BNB Smart Chain networks, the platform distinguishes itself through a unique "object-centric" approach where options are represented as bTokens (buyer rights) and wTokens (writer obligations). In early 2026, the project underwent a significant evolution, rebranding or integrating as an AI-powered meme ecosystem featuring "#SirenAIAgent"—a dual-personality AI assistant that provides both aggressive wealth-growth strategies and cautious risk-warning signals based on on-chain data. As of late March 2026, the $SIREN token has experienced extreme volatility, reaching a market capitalization of approximately $1.3 billion and ranking among the top 60 cryptocurrencies globally after a massive price surge.