A liquidity pool is a collection of cryptocurrency funds locked in a smart contract, used to facilitate decentralized trading, lending, and other DeFi activities without traditional order books.
How it works: Liquidity providers deposit token pairs, traders swap tokens against the pool, pool uses algorithms for pricing (AMM), and LPs earn fees from trades.
Risks for liquidity providers include impermanent loss (when token prices diverge), smart contract vulnerabilities, rug pulls in unaudited pools, and opportunity cost of locked funds.
Popular liquidity pools are found on Uniswap, Curve Finance, Balancer, and PancakeSwap. Each platform offers different incentives and pool types.