Anyone who tells you impermanent loss is no big deal because swap fees make up for it, show them this graph.

LP returns in the $YFI/ETH pool on Uniswap.

After accounting for swap fees, an LP would have suffered -40% loss vs +30% gains without IL.
Meanwhile, check out APY for the $YFI pool on uniswap.info.

Supposedly it's +29.62%

Only off by -70% 🙄

LPs are led to believe they're earning high APY, when in reality, they could be suffering heavy net losses vs. holding.
Another one: $USDT/ETH

uniswap.info tells us the projected APY is +47.71%

More like -3.77%
One more: $CEL/ETH

Cool! +39.52%

Oops! More like -10.42%
source for these graphs: amm.vav.me

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More from @NateHindman

1 Nov 20
1/ Let's talk about APY in AMM pools 📈

It's the main metric used to calculate profits, with many yield farms & AMM protocols advertising high APY figures to lure LPs 🤑

But the way APY is measured today makes some flawed assumptions that can be misleading 🧐👇 Image
2/ One flawed assumption is liquidity staked in a pool remains intact.

In reality, impermanent loss erodes staked liquidity and reduces profits from collected swap fees & liquidity mining rewards.

This can leave LPs with razor thin or negative returns.

3/ Yet most AMM front-ends list APY without taking impermanent loss into account.

This is why the returns you actually earn as an LP when you withdraw liquidity are often less than the projected APYs originally advertised in AMM interfaces.
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