SCCP-2036: Update USDT Perps V2 - `maxPD` and `maxLiquidationDelta`

Author
StatusImplemented
TypeGovernance
NetworkOptimism
ImplementorTBD
ReleaseTBD
ProposalLoading status...
Created2023-08-14

Simple Summary

This SCCP proposes to update the USDT perps v2 parameters as per the below:

  • maxPD updated from 1.5 bp to 3 bp
  • maxLiquidationDelta update from 3 bp to 1.5 bp

Abstract

maxPD (MPD) and maxLiquidationDelta (MLD) are parameters introduced in SIP-2005 and are set by governance taking into account the below rules:

  • maxPD is set to 2 * (offchain maker fee + offchain taker fee)
  • maxLiquidationDelta is set to offchain maker + offchain taker fees

These parameters did not respect the best practive rule of thumb which has been rolled out on all existing perp markets which could result in more relinance on endorsed liquidations then necessary without having any effect on the trading experience.

Motivation

The main motivation is to align the maxPD and maxLiquidationDelta parameters as per the rules of thumb established on all markets.

Copyright

Copyright and related rights waived via CC0.