Liquidity provision and impermanent loss

Becoming a liquidity provider

Someone has to put the tokens into the pool. Those people are called LPs — liquidity providers. To become one, you deposit two tokens in equal dollar value. If ETH is $3,000 and you want to LP a $1,000 position into an ETH/USDC pool, you deposit 0.166 ETH ($500) and 500 USDC. In return, the protocol gives you LP tokens — basically a receipt that says 'you own this share of the pool'. Every time someone swaps in that pool, you earn a slice of the fee.

Here is the catch nobody mentions at the start: when prices move, the pool automatically rebalances against you. Suppose ETH doubles from $3,000 to $6,000. Traders pile in to buy the now-cheap ETH out of your pool. By the time the dust settles, your LP position contains LESS ETH and MORE USDC than when you started. You still got richer in dollar terms — but a person who just held their original 0.166 ETH and 500 USDC in a wallet got richer faster. That gap is impermanent loss.

It is called 'impermanent' because if the price returns to where you started, the loss disappears. The fees you earned stay. That is the LP's whole bet: 'fees earned will be greater than the divergence loss.' On stable pairs like USDC/USDT, divergence is tiny, so IL is tiny — fees almost always win. On volatile pairs like ETH/MEMECOIN, divergence is huge, so IL can crush the fee income. Read the pair before you LP, not after.

For a $500 retail account, the practical guidance is simple. Stick to deep, stable pools on a low-gas chain — providing liquidity to a thin meme-pair on Ethereum mainnet will eat 20-50% of your stake in gas alone, before any IL hits. If you want to LP, do it on L2 (Arbitrum, Base) where the math has room to work in your favor.

Recap: LPs earn fees and take on impermanent loss. The bigger the price divergence, the bigger the silent drag. Stable pairs minimize IL; volatile pairs amplify it. Do the math before you deposit, not after you withdraw.