Automated Market Maker Fees
Automated Market Maker Fees are the transaction costs charged by decentralized exchanges to traders, which are then distributed to the liquidity providers who enable the trade. These fees are a primary source of revenue for liquidity providers and are a critical component of the exchange's business model.
Unlike traditional order books, where fees are determined by the exchange operator, AMM fees are often determined by the liquidity pool's algorithm. These algorithms, such as constant product formulas, ensure that there is always liquidity available for a trade, even if the price moves significantly.
The fee percentage is a key parameter that affects both the trader's cost and the liquidity provider's return. Protocols may allow governance to adjust these fees to respond to changes in market volatility or to increase competitiveness.
This dynamic pricing of liquidity is a fundamental innovation in decentralized finance, enabling permissionless trading and automated market making.