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Fundamentals8 min read

Impermanent Loss Explained: The Hidden Math Behind Automated Market Makers (AMMs)

A mathematical breakdown of impermanent loss in Uniswap v2 and concentrated liquidity pools (Uniswap v3).

Elena Rostova(Cryptographic Systems Researcher)
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Updated 2025-02-19
Executive Summary

Calculate the exact divergence loss of providing liquidity compared to holding, and evaluate fee APY thresholds required to break even.

1. The Constant Product Formula (x * y = k)

Constant product AMMs maintain an invariant pool reserve. When an asset's market price diverges from the ratio when you deposited, arbitrageurs extract value from the pool until prices align.

This divergence causes you to hold more of the declining asset and less of the appreciating asset compared to simply holding both assets in cold storage.

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Frequently Asked Questions

The loss is technically impermanent because if the relative prices of the two tokens return to the exact ratio of your initial deposit, the loss disappears.