What You're Actually Doing When You Provide Liquidity
Providing liquidity to a DeFi pool means depositing two tokens in a pair — say, ETH and a stablecoin — so other people can trade between them, and earning a share of the trading fees in return. The pool automatically rebalances the ratio of the two tokens as the price moves, which is where impermanent loss comes from.
Why It Happens
If the price of one token in the pair moves significantly compared to the other, the pool's automatic rebalancing means you end up holding relatively more of the token that fell in value and less of the one that rose, compared to if you'd simply held both tokens in a wallet and done nothing. The gap between those two outcomes is the “loss,” and it grows the more the two tokens diverge in price.
Why It's Called “Impermanent”
The loss only becomes permanent, or realized, if you withdraw your liquidity while the prices are still diverged — if the two tokens' prices move back toward their original ratio before you withdraw, the loss shrinks or disappears entirely. In practice, prices rarely move back exactly in time, so it's a more honest name than a comforting one.
When It's Worth the Risk Anyway
Impermanent loss matters most in pools where the two tokens' prices move independently of each other, such as a volatile token paired with a stablecoin. It matters far less in pools of two assets that tend to move together, like two different stablecoins. The fees earned can still outweigh the loss, but only if you've actually checked, not assumed.
Yield farming can genuinely work — but only once you understand the specific risk that makes some pools much safer than others. Yield Farming Fast-Track walks through exactly how to tell the difference.
ℹ️ This article draws on publicly available sources and is correct as of October 11, 2026. Crypto moves fast — prices, fees, and regulations can change, so always verify anything time-sensitive before acting on it.