Slippage and Liquidity Risk
Slippage is the difference between the expected price of a trade and the price at which the trade is actually executed, often occurring in markets with low liquidity. Liquidity risk is the broader danger that an asset cannot be traded quickly enough to prevent a loss or achieve a required price.
In the context of decentralized finance and order book exchanges, large orders can exhaust the available depth at a specific price level, causing the execution price to move against the trader. This phenomenon is a direct component of transaction costs, as the trader essentially pays a premium for the market impact their order creates.
High slippage acts as a barrier to efficient risk management, making it expensive to enter or exit positions during periods of high volatility. Market makers attempt to mitigate this by providing liquidity, but they demand compensation through wider spreads to account for the risk of holding the asset.
Understanding these mechanics is essential for minimizing the cost of maintaining a desired risk profile.