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Friday, January 10, 2025

blockchain – The best way to calculate how a sure transaction impacts a token value?

The best way to Calculate Token Worth Affect of Massive Trades in Decentralized Finance (DeFi) Environments

I’m growing a instrument to investigate the impression of enormous trades on token costs inside a Decentralized Trade (DEX) setting, particularly on the Polygon community utilizing the Quickswap Router contract as a case examine. My aim is to programmatically estimate the value motion attributable to important transactions.

Situation:

Assume we’re observing the Polygon mempool for transactions directed in the direction of the Quickswap Router contract. We detect a transaction swapping a considerable quantity of a stablecoin (denoted as S) for a token (denoted as R). The transaction particulars are as follows: $34,000 of S is exchanged for R tokens priced at $7.21 every. Ignoring transaction charges, this equates to buying roughly 4,715.67 R tokens.

Goal:

I need to calculate the post-transaction value of R within the state of affairs the place the liquidity pool’s preliminary state is as follows:

  • Liquidity Pool Dimension (Preliminary): 100,000 R and 721,000 S (indicating a 1R = 7.21S or $7.21 value per R token).
  • Order Dimension: $34,000 price of S to purchase R.
  • Present R Worth: $7.21 per R.

Method:

I used the Fixed Product Market Maker (CPMM) mannequin for simplicity, excluding elements like slippage tolerance and buying and selling quantity from the calculation. The method is:

  1. Calculate the Variety of R Tokens Purchased: Divide the order dimension by the present R value.
  2. Replace the Liquidity Pool: Subtract the R tokens purchased from the pool and add the S spent.
  3. Calculate the New Worth of R: Decide the brand new value primarily based on the up to date liquidity pool ratio.

Calculation:

After executing the commerce, the liquidity pool is adjusted, and the brand new value of R is calculated. Nevertheless, I am on the lookout for suggestions on this strategy and any recommendations for extra correct or environment friendly strategies to estimate the value impression of enormous trades in DeFi settings.

Does anybody have insights or enhancements to supply on this calculation methodology? Any recommendation or various methods can be enormously appreciated.

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