Trading
Slippage
Difference between expected and actual execution price on a trade.
Slippage happens when an order is large enough to move through multiple price levels of the order book or AMM curve. On thin markets, slippage can be brutal — sometimes several percent on a single trade.
On AMMs, slippage is mathematically bounded by the constant-product curve. Most DEX UIs show expected slippage before you sign and let you set a maximum tolerance.