Impermanent loss is what happens to a liquidity provider when the prices of the pooled assets drift apart. You end up with less value than if you had simply held the two assets in a wallet, even though the pool kept earning fees the whole time. It is the defining risk of liquidity providing, the reason attractive pool APYs keep disappointing the people who chase them, and probably the worst-named concept in DeFi, because the loss is only impermanent if prices come back, and prices owe you nothing.
Here is the mechanism in plain terms, the actual numbers at different price moves, the cases where fees beat the loss and the cases where they cannot, and how to take liquidity-providing yield without doing the math homework yourself.
The mechanism in plain terms
A standard liquidity pool holds two assets and keeps their total values balanced, rebalancing automatically with every trade. When one asset's price rises, traders buy it out of the pool, leaving the pool holding more of the weaker asset and less of the stronger one. That is the whole trick. The pool systematically sells winners and accumulates losers, which is precisely the opposite of what a holder wants.
So a liquidity provider's position drifts away from a plain holding of the same two assets whenever their relative price moves, in either direction. The gap between the pool position's value and the hold-in-wallet value is the impermanent loss. Fees and incentives exist to pay you for accepting that drift, and whether they actually cover it is the only question that matters.
The numbers
The loss depends only on how far the price ratio between the two assets moves, and the standard constant-product math gives a clean table.
| Price ratio change | Loss vs just holding |
|---|---|
| 1.25x | 0.6% |
| 1.5x | 2.0% |
| 2x | 5.7% |
| 3x | 13.4% |
| 4x | 20.0% |
| 5x | 25.5% |
Two readings matter. Small moves cost almost nothing, which is why stable pairs like USDC-USDT barely feel the effect and why conservative liquidity strategies lean so heavily on them. And large moves cost seriously, a 2x divergence costs 5.7% of the position, so providing liquidity to a volatile pair during a trend means the fee income is racing a drain that accelerates as the trend runs. A provider in an ETH-stablecoin pool through a doubling of ETH still gains substantially, while finishing about 5.7% behind what simply holding the same assets would have returned, and if the pool's fees earned less than that gap over the period, the famous APY was a net loss against holding.
The name misleads exactly here. The loss is unrealised while you stay in the pool and prices might converge again, hence impermanent. Withdraw while prices are apart and it is just a loss, permanent like any other.
When fees win and when they cannot
Liquidity providing is a real business with a real income side. High-volume pools on tight pairs can out-earn their impermanent loss, which is why professional market makers exist, and our guides to yield farming and its risks treat pool selection as the whole game.
The favourable cases share a shape. Correlated or pegged assets, so the ratio barely moves. High trading volume relative to pool size, so fees accumulate fast. And boring markets, since flat prices that wobble without trending generate fees without divergence. The unfavourable cases are their mirror, volatile uncorrelated pairs, thin volume, trending markets, and incentive-juiced pools where the advertised APY is temporary token emissions papering over a structural drain. A useful habit when a pool advertises a big number is asking which side of that table it sits on, the same source-of-yield question that applies to every return in this market.
How to hold LP yield without doing this homework
Everything above is manageable, and managing it is a job. Pair selection, volume monitoring, exit timing against divergence, incentive-token selling. Doing that job badly costs more than the yield, which is a common retail LP outcome.
The managed alternative hands the job to a strategy. EarnPark's stablecoin Liquidity Providing strategies take the liquidity-provider role on your behalf, earning the trading fees that compensate the divergence risk this article describes. They publish a low risk rating, pay daily with instant withdrawal for a $2 flat fee, and quote their current rate live in the app. The platform's higher headline numbers, up to 10% APY on USDC as of October 2026, come from its separate market-making and on-chain lending strategies rather than from LP, all published base rates for every account holding zero PARK. The trade is the usual one, hedging shifts the exposure from divergence risk to platform and strategy risk rather than deleting it, and each strategy page states the source and terms that make the pricing possible. Running your own pools, choosing a managed seat, or skipping LP economics entirely for simpler yield are all coherent answers, and our comparison of where stablecoins earn maps that wider menu. For an allocation you deliberately choose to put to work, the start earning flow covers the mechanics.
FAQ
What is impermanent loss in simple terms?
The value gap between holding two assets in a pool versus holding them in a wallet, created because pools automatically sell the asset that rises and accumulate the one that falls. It grows with how far the two prices drift apart and becomes a realised loss if you withdraw while they are apart.
How much impermanent loss will I actually get?
It depends only on the price ratio move between the pooled assets. A 1.5x divergence costs about 2% versus holding, a 2x costs 5.7%, a 4x costs 20%. Stable pairs suffer almost none, volatile pairs in trending markets suffer the most.
Can impermanent loss be avoided?
Reduced, not avoided, anywhere prices can diverge. Stable or correlated pairs minimise it, single-sided and hedged strategies shift it into other risks, and concentrated liquidity positions can increase the exposure to divergence depending on the range you choose. Fees and incentives can outweigh it, which is compensation rather than avoidance.
Is providing liquidity still worth it?
On the right pools, yes, which is why market-making remains a professional business. The realistic retail question is whether your pool's fee income beats its divergence drain after your time and gas, and if auditing that regularly sounds like a job, a managed strategy or simpler yield is the honest alternative.