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Velocity ProtocolTradingTrading FeesOther Trading Fees

Other Trading Fees

These are additional fees charged across perpetual and spot markets, on top of the taker/maker fees on Trading Fees.

Definitions

  • liquidator_fee: Additional premium for taking over asset/liability pairs at oracle, paid to the liquidator.
  • if_liquidation_fee: Per-market liquidation cut routed to the Insurance Fund.
  • protocol_liquidation_fee: Per-market liquidation cut routed to the withdrawable protocol_fee_pool, introduced with the fee redesign. Split IF-first against the same insurance-fee budget so it can never push a liquidation into bankruptcy — see Liquidations.
  • if_fee_factor (spot markets, InsuranceFund.ifFeeFactor): fraction of deposit-interest gains reserved for the (100% staker-owned) revenue_pool → Insurance Fund.
  • protocol_fee_factor (spot markets, SpotMarket.protocolFeeFactor): fraction of deposit-interest gains reserved for the withdrawable protocol_fee_pool. Lenders receive the remainder after both factors.

These per-market rates are set by an admin (update_perp_market_liquidation_fee / update_spot_market_liquidation_fee, update_spot_market_if_factor) and read directly from each market’s on-chain account — check PerpMarketAccount.liquidatorFee / ifLiquidationFee / protocolLiquidationFee and SpotMarketAccount.liquidatorFee / ifLiquidationFee / insuranceFund.ifFeeFactor / protocolFeeFactor for current values.

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