# Interest Rate Model ## APY Function **Borrow APY** \= \[1 + Base + Multiplier \* min(UtilizationRate, Kink) + max(JumpMultiplier \* UtilizationRate - Kink, 0)] ^ 2102400 - 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** {% hint style="info" %} BlocksPerYear = 2,102,400 (15 sec per block) {% endhint %} {% hint style="info" %} Find other variables in [Markets](https://app.cream.finance/markets/v1) {% endhint %} ## Major ![](https://3057495129-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MKJWcUfnKdJ1BjWKoMM-3555916521%2Fuploads%2Fgit-blob-329bd8b4190736cbc4259a020916a7f2eec1fe12%2F%E6%88%AA%E5%9C%96%202021-07-15%20%E4%B8%8B%E5%8D%8812.16.25.png?alt=media) | Parameter | Value | | ---------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Category | Major | | Tokens |

ETH, WBTC, renBTC, BBTC, HBTC, WBTC, yvWETH, ibBTC


UNI-V2-WBTC-ETH, UNI-V2-ETH-USDT, UNI-V2-DAI-ETH, UNI-V2-USDC-ETH

yvCurve-sETH, yvCurve-stETH

| | Base | 0% | | Multiplier | 15% | | JumpMultiplier | 200% | | Kink 1 | 80% | | Kink 2 | 90% | | Contract Address | [0x812C0b2a2A0A74f6f6ed620Fbd2B67Fec7DB2190](https://etherscan.io/address/0x812C0b2a2A0A74f6f6ed620Fbd2B67Fec7DB2190) | ## Stable ![](https://3057495129-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MKJWcUfnKdJ1BjWKoMM-3555916521%2Fuploads%2Fgit-blob-0cfc3776c8291c209f98bd1c7ba3b6e946fde07b%2F%E6%88%AA%E5%9C%96%202021-07-15%20%E4%B8%8B%E5%8D%882.50.31.png?alt=media) | Parameter | Value | | ---------------- | --------------------------------------------------------------------------------------------------------------------- | | Category | Stable | | Tokens | USDT, USDC, DAI, BUSD, yCRV, HUSD, sUSD, FRAX, UST, yvCurve-IB, yUSD, FEI, PAX, EURT | | Base | 0% | | Multiplier | 18% | | JumpMultiplier | 800% | | Kink 1 | 80% | | Kink 2 | 90% | | Contract Address | [0xE7dB46742c51a7bd64b8D83b8201239D759786bE](https://etherscan.io/address/0xE7dB46742c51a7bd64b8D83b8201239D759786bE) | ## Governance + Seed ![](https://3057495129-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MKJWcUfnKdJ1BjWKoMM-3555916521%2Fuploads%2Fgit-blob-a5947f80f385d17142ddff638e873cb235c572a3%2F%E6%88%AA%E5%9C%96%202021-07-23%20%E4%B8%8B%E5%8D%884.35.51.png?alt=media) | Parameter | Value | | ---------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Category | Governance & Seeds | | Tokens | COMP, BAL, YFI, LINK, CREAM, AAVE, CRV, MTA, SRM, FTT, UNI, SUSHI, wNXM, CEL, DPI, BOND, KP3R, HFIL, HEGIC, ESD, COVER, 1INCH, OMG, xSUSHI, SNX, PICKLE, AKRO, bBADGER, OGN, ALPHA, FTM, RUNE, PERP, RAI, OCEAN, RARI, SFI, ARMOR, arNXM, MLN, VSP, VVSP, GNO, SWAP, WOO, BNT, PAXG, LON, YGG, AXS, SAND, MANA | | Base | 0% | | Multiplier | 20% | | JumpMultiplier | 500% | | Kink 1 | 70% | | Kink 2 | 80% | | Contract Address | [0xbadaC56c9aca307079e8B8FC699987AAc89813ee](https://etherscan.io/address/0xbadaC56c9aca307079e8B8FC699987AAc89813ee) | ## SushiSwap Liquidity Provider token (SLP) ![](https://3057495129-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MKJWcUfnKdJ1BjWKoMM-3555916521%2Fuploads%2Fgit-blob-e3938dbc8107825d89f40963f3fabb7c1ddf2562%2F%E6%88%AA%E5%9C%96%202021-02-26%2012.32.39.png?alt=media) | Parameter | Value | | ---------------- | ----------------------------------------------------------------------------------------------------------------------- | | Category | SLP | | Tokens |

SLP-WBTC-ETH,

SLP-DAI-ETH,

SLP-USDC-ETH,

SLP-ETH-USDT,

SLP-SUSHI-ETH,

SLP-YFI-ETH,

| | Base | 10% | | Multiplier | 55% | | JumpMultiplier | 180% | | Kink | 50% | | Contract Address | [0x66FB6cf0Af2Cb8f967F2439Ea855387cB431Fed8](https://etherscan.io/address/0x66FB6cf0Af2Cb8f967F2439Ea855387cB431Fed8) | ### AMP (exploit) | Parameter | Value | | ---------------- | --------------------------------------------------------------------------------------------------------------------- | | Category | AMP | | Tokens | AMP | | Base | 0% | | Multiplier | 0% | | JumpMultiplier | 0% | | Kink | 100% | | Contract Address | [0x73D06034Ae98E2Af4eA4E0fA0320cdEf1561f493](https://etherscan.io/address/0x73D06034Ae98E2Af4eA4E0fA0320cdEf1561f493) |