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Model-free Hedging of Impermanent Loss in Geometric Mean Market Makers

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arxiv 2303.11118 v1 pith:AQDAF4TB submitted 2023-03-20 q-fin.MF

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keywords marketexchangegeometricliquiditymakersmeanarbitrageursimpermanent
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We consider Geometric Mean Market Makers -- a special type of Decentralized Exchange -- with two types of users: liquidity takers and arbitrageurs. Liquidity takers trade at prices that can create arbitrage opportunities, while arbitrageurs align the exchange's price with the external market price. We show that in Geometric Mean Market Makers charging proportional transaction fees, Impermanent Loss can be super-hedged by a model-free rebalancing strategy. Moreover, we demonstrate that in such a DEX, the exchange rate is of finite variation, so that loss-versus-rebalancing (the shortfall of providing liquidity versus the corresponding constant-weights portfolio) vanishes.

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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Risk-Neutral Pricing Model of Uniswap Liquidity Providing Position: A Stopping Time Approach

    q-fin.PR 2024-11 reject novelty 4.0 of 10

    The paper values Uniswap V3 LP positions as barrier-style perpetual options with stopping-time discounting and two fee withdrawal assumptions.

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