📈Interest Rate Model

APY Function

The parameters below are different based on token type (major, stable, governance, exotic.... etc).

Borrow APY

= {1 + [Base + Multiplier * min(UtilizationRate, Kink 1) + max(JumpMultiplier * UtilizationRate - Kink 2,0)] / BlocksPerYear } ^ BlocksPerYear - 1

Supply APY

= Distribute (Interest Paid by Borrowers Per Block - Reserve) to all suppliers, and convert it into APY

= Distribute [(1 + Borrow APY) ^ (1 / BlocksPerYear) - 1] * Total Borrow * (1 - Reserve Factor) to all suppliers, and convert it into APY

= {[(1 + Borrow APY) ^ (1 / BlocksPerYear) - 1] * Total Borrow * (1 - Reserve Factor) / Total Supply}, and convert it into APY

= {1 + [(1 + Borrow APY) ^ (1 / BlocksPerYear) - 1] * Total Borrow * (1 - Reserve Factor) / Total Supply} ^ BlocksPerYear - 1

= {1+[(1+Borrow APY)^(1/BlocksPerYear)-1]*(1-Reserve Factor)*Utilization Rate}^BlocksPerYear-1

BlocksPerYear = 2,102,400 (15 sec per block)

Find other variables in Markets

Parameter by Token Category

Major

Parameter	Value
Token	WBTC
Base	0%
Multiplier	17.5%
JumpMultiplier	200%
Kink 1	80%
Kink 2	90%
Contract Address

WETH

Parameter	Value
Token	WETH
Base	0%
Multiplier	12.5%
JumpMultiplier	250%
Kink 1	80%
Kink 2	90%
Contract Address

Stable

Parameter	Value
Token	USDT, USDC, DAI
Base	0%
Multiplier	13%
JumpMultiplier	800%
Kink 1	80%
Kink 2	90%
Contract Address

Governance

Parameter	Value
Token	UNI, SUSHI, CRV, ICHI
Base	0%
Multiplier	20%
JumpMultiplier	500%
Kink 1	70%
Kink 2	80%
Contract Address