Impermanent Loss (Detailed)
The difference in value between depositing tokens into a trading pool and simply keeping them in your wallet, caused by price changes between paired tokens. The pool automatically rebalances your holdings as prices shift, which can leave you worse off than holding.
Impermanent loss is the hidden cost of being a liquidity provider. When you deposit two tokens into a pool, the AMM (automated market maker) constantly rebalances your position as prices move. If one token shoots up relative to the other, you wind up holding more of the cheaper one and less of the expensive one—less total value than if you'd just held.
Here's a concrete example. You deposit $5,000 of ETH and $5,000 of USDC ($10,000 total). ETH doubles in price. If you'd just held, you'd have $15,000 ($10,000 in ETH + $5,000 USDC). But the pool auto-rebalanced, leaving you with about $14,142. That $858 gap—roughly 5.7%—is your impermanent loss.
The "impermanent" label is a bit misleading. Yes, the loss reverses if prices return to their original ratio. But if you pull out while prices are different, it's permanent. And in practice, many LPs withdraw during divergence, so the loss becomes very real.
The math scales with price movement. A 25% price change causes roughly 0.6% loss. A 2x change hits about 5.7%. A 5x change? Around 25.5%. Pools pairing similar assets (USDC/USDT) barely feel it. Pools pairing volatile tokens (ETH/SHIB) can get hammered.
To come out ahead as a liquidity provider, your trading fees need to beat the impermanent loss. High-volume pools on popular pairs can generate 20-50%+ APR in fees, potentially making it worthwhile. Low-volume pools may not earn enough to cover the loss, leaving you worse off than if you'd just held your tokens.
Frequently Asked Questions
▸Can I avoid impermanent loss?
You can minimize it by sticking to pools with correlated assets—stablecoin pairs have near-zero IL. Concentrated liquidity positions (Uniswap V3) let you set price ranges, but they actually increase IL risk if prices move outside your range. In volatile pools, you can't eliminate IL entirely—it's the fundamental cost of being a liquidity provider.
▸When is providing liquidity still profitable despite IL?
When your trading fees outrun your impermanent loss. High-volume pools on major token pairs at popular DEXs generate the most fees. Some protocols sweeten the deal with token rewards on top of fees. Add up total yield (fees + rewards) and compare it to the IL for your price scenario to see if the math works.
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