🚦Risk Parameters

The following risk parameters control collateral requirements, liquidation behavior, and market caps within the Moonwell Comptroller. All mantissa values are scaled by 1e18.

Collateral Factor

The percentage of a supplied asset's value that counts as borrowing power. Set per market.

If collateralFactor = 0.75e18 for USDC, then every $1 of USDC supplied provides $0.75 of borrowing power.

// Query
function markets(address mToken) external view returns (bool isListed, uint collateralFactorMantissa)

// Admin setter
function _setCollateralFactor(MToken mToken, uint newCollateralFactorMantissa) external returns (uint)

Maximum: 0.9e18 (90%). Stored in the Market.collateralFactorMantissa field.

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Close Factor

The maximum percentage of a borrower's debt that can be repaid in a single liquidation transaction.

// Query
function closeFactorMantissa() public view returns (uint)

// Admin setter
function _setCloseFactor(uint newCloseFactorMantissa) external returns (uint)

Typical range: 0.05e18 (5%) to 0.9e18 (90%). Note: the setter performs an admin check only - range validation is not enforced on-chain.

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Liquidation Incentive

The bonus that liquidators receive on seized collateral, expressed as a multiplier. A value of 1.1e18 means liquidators receive a 10% discount on the collateral they seize.

// Query
function liquidationIncentiveMantissa() public view returns (uint)

// Admin setter
function _setLiquidationIncentive(uint newLiquidationIncentiveMantissa) external returns (uint)

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Price Oracle

The oracle contract used to determine asset prices for collateral calculations. The Comptroller queries the oracle when calculating account liquidity.

// Query
function oracle() public view returns (PriceOracle)

// Admin setter
function _setPriceOracle(PriceOracle newOracle) public returns (uint)

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Borrow Cap

The maximum amount of underlying tokens that can be borrowed from a specific market. A value of 0 means there is no cap.

// Query
function borrowCaps(address mToken) public view returns (uint)

// Admin setter (batch)
function _setMarketBorrowCaps(MToken[] calldata mTokens, uint[] calldata newBorrowCaps) external

Can be set by the admin or the Borrow Cap Guardian.

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Supply Cap

The maximum amount of underlying tokens that can be supplied to a specific market. A value of 0 means there is no cap.

// Query
function supplyCaps(address mToken) public view returns (uint)

// Admin setter (batch)
function _setMarketSupplyCaps(MToken[] calldata mTokens, uint[] calldata newSupplyCaps) external

Can be set by the admin or the Supply Cap Guardian.

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Reward Distribution

Rewards are distributed via the MultiRewardDistributor contract, which supports multiple reward tokens with independent supply-side and borrow-side emission rates per market.

// Query the reward distributor
function rewardDistributor() public view returns (MultiRewardDistributor)

// Admin setter
function _setRewardDistributor(MultiRewardDistributor newRewardDistributor) public