What Is Liquidity Pool?
Also known as: LP Pool, AMM Pool
In short
A liquidity pool is a pool of funds on decentralized exchanges in which trades are executed against token pairs that users deposit into a smart contract instead of an order book; prices are set by an automated market maker (AMM) formula.
A typical pool contains two tokens, for example ETH and USDC. Liquidity providers deposit these two tokens into the pool in the specified ratio and receive LP tokens representing their share of the pool in return. When a user wants to buy ETH, they add USDC to the pool and withdraw ETH. Rules such as the x × y = k (constant product) formula popularized by Uniswap automatically update the price as the ratio in the pool changes.
Pools remove the need to wait for a counterparty to trade and allow anyone to be a market maker. The fee charged on each trade is distributed to liquidity providers in proportion to their shares. There are also different designs: protocols such as Curve use formulas optimized for similarly valued assets (for example stablecoins), while Uniswap v3 allows liquidity to be concentrated within specific price ranges.
The main risk of providing liquidity is impermanent loss: when the price ratio of the tokens in the pool changes, the value of the provider's holdings can fall below the value they would have had if they had simply held the tokens. Smart contract vulnerabilities and one of the tokens in the pool losing value are other significant risks.
Last updated: · This content is for information purposes only and is not investment advice.