#Ray What is Raydium (RAY)? Raydium is an automated market maker (AMM) and liquidity provider built on the Solana blockchain, integrated with the Serum decentralized exchange (DEX). It combines the benefits of AMM liquidity pools with Serum’s central limit order book, enabling faster trades, shared liquidity, and cost-efficient transactions compared to other blockchains like Ethereum. Raydium supports trading, yield farming, staking, and governance through its native RAY token. It launched its mainnet on February 21, 2021.