Adverse Selection Cost
Adverse selection cost is the economic loss incurred by liquidity providers when they trade against participants who have better information about the asset's future price. This occurs when the market maker's quote is hit by an informed trader who knows the price is about to change in their favor.
The liquidity provider essentially sells at a price that is too low or buys at a price that is too high, relative to the subsequent market value. In cryptocurrency markets, this cost is a major driver of the bid-ask spread, as providers must build in a risk premium to cover these potential losses.
Minimizing adverse selection cost requires advanced monitoring of order flow and rapid adjustment of quotes based on incoming information. It is a fundamental concept in managing the risks of providing liquidity.