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What is Impermanent Loss and How to Avoid It in DeFi

Published: March 19, 2026 | Read Time: 7 mins

If you've spent any time researching decentralized finance (DeFi), you've likely encountered the term Impermanent Loss (IL). For many new yield farmers, it sounds terrifying—a silent tax that eats into your hard-earned APY. But what exactly is it, and more importantly, how can you avoid it while still generating high passive income?

The Mechanics of Liquidity Pools

To understand impermanent loss, you first need to understand how Liquidity Pools mathematically function on Automated Market Makers (AMMs) like Uniswap or Suspishwap.

When you provide liquidity to a pool, you typically have to provide two assets in equal dollar value. For example, if you want to provide $2,000 of liquidity to an ETH/USDC pool, you must deposit $1,000 worth of ETH and $1,000 worth of USDC.

The AMM uses a mathematical formula (usually x * y = k) to maintain the balance of the pool. If the price of ETH suddenly doubles on external markets (like Coinbase or Binance), arbitrageurs will rush to the liquidity pool you are participating in to buy the "cheap" ETH until the prices match again.

How Impermanent Loss Occurs

Because the arbitrageurs are buying ETH out of the pool and putting USDC into the pool, the ratio of your underlying assets shifts.

When you finally go to withdraw your liquidity, you will find that you have essentially less ETH and more USDC than when you started. Because ETH went up in value, you would have made slightly more money by simply "holding" your original ETH instead of providing it as liquidity. That difference in total value between providing liquidity and simply holding the assets in your wallet is defined as Impermanent Loss.

It is called "impermanent" because if the price of ETH simply returns to the exact price it was when you deposited your funds, the loss vanishes entirely. It only becomes "permanent" when you withdraw your funds at a different price point.

Strategies to Avoid Impermanent Loss

Fortunately, you don't have to subject your portfolio to high risks of IL. Here are three tested strategies for mitigating or avoiding it entirely:

• Single-Sided Staking: Instead of providing two assets to a liquidity pool, many protocols allow you to stake a single asset (like lending USDC on Aave). There is zero impermanent loss risk here because you aren't balancing against a secondary volatile asset.
• Stablecoin Pools: Providing liquidity to a pair of assets that are pegged to the exact same value (e.g., a USDC/USDT pool) almost completely eliminates impermanent loss. Because both assets remain at $1.00, the ratio between them never changes drastically, allowing you to harvest trading fees risk-free.
• Correlated Asset Pools: Similar to stablecoin pools, providing liquidity to strongly correlated assets like ETH/wETH or BTC/wBTC offers high yields with virtually no IL, since both assets move precisely in tandem.

Ultimately, liquidity provision is a powerful tool for generating wealth, but it requires careful mathematical calculation. The trading fees and farming rewards you earn must outweigh the potential impermanent loss of the asset diverging in price.