Stablecoin liquidity providers on Curve Finance face asymmetric risk exposure when counterparties sell into the pool. Unlike traditional trading pools where a user's percentage stake remains fixed, Curve's mechanism alters the underlying asset composition of each LP share as trades occur. This means that when other participants sell one stablecoin for another, the remaining LPs absorb a disproportionate concentration of the sold asset rather than maintaining their original allocation. Trading fees collected by the pool do not guarantee protection against these impermanent loss scenarios tied to asset mix shifts.