Definition

Impermanent Loss (IL) — the difference between holding assets in a wallet versus placing them in a liquidity pool. Occurs when the price of one asset in the pair changes significantly relative to the other.

How Impermanent Loss Occurs

Example

You added to a pool:

  • 1 ETH ($2,000)
  • 2,000 USDC

Total value: $4,000

Start:
1 ETH = $2,000
Pool: 1 ETH + 2,000 USDC = $4,000

One month later, ETH rises to $4,000:

If you just held:
1 ETH ($4,000) + 2,000 USDC = $6,000

In pool (due to rebalancing):
0.707 ETH + 2,828 USDC ≈ $5,656

Impermanent Loss: $344 (5.7%)

Why This Happens

Liquidity pools (AMM) maintain a constant value ratio between assets. When price changes:

  1. Arbitrageurs equalize prices with market
  2. Pool automatically rebalances
  3. You receive less of the appreciating asset
  4. And more of the depreciating one

Impermanent Loss Table

Price Change Impermanent Loss
1.25x (+25%) 0.6%
1.5x (+50%) 2.0%
2x (+100%) 5.7%
3x (+200%) 13.4%
4x (+300%) 20.0%
5x (+400%) 25.5%

When Losses Become Permanent

Losses are called "impermanent" because:

  • If prices return to original levels — losses disappear
  • If you exit the pool at changed prices — losses become realized

How to Minimize Impermanent Loss

1. Choose Stable Pairs

Stablecoin pools (USDC/USDT) have almost no IL.

2. Correlated Assets

Pairs like ETH/stETH or WBTC/renBTC minimize IL.

3. Consider Fees

High fees can offset IL:

Fees per year: +20%
Impermanent loss: -5%
Net result: +15%

4. Concentrated Liquidity

On Uniswap V3 you can set a price range:

  • Higher fees within range
  • But higher risks outside range

Impermanent Loss and DCA

For investors using DCA:

Strategy Recommendation
Pure DCA Avoid liquidity pools
DCA + yield Stablecoin pools only
Experienced investor Analyze IL vs fees

Important: For most investors, simply holding assets or regular staking is safer than providing liquidity.

Profitability Calculation

Before entering a pool, calculate:

Expected fees per year: X%
Potential IL (with price movement): Y%

If X > Y → pool may be profitable
If X < Y → better to just hold assets