Flexible interest profit can be obtained from the protocol after depositing underlying collateral into lending protocols such as Dank, Compound, AAVE, etc. Meanwhile, users will also obtain the corresponding value of interest-bearing tokens (dToken, cToken, aToken, etc.). Those tokens represent the rights to redeem the principal and the future forward returns. Dank, Compound, and AAVE are lending protocols based on variable interest rates, which cannot guarantee the exact future returns. In order to hedge the income fluctuations and maintain a stable income expectation, Dank's Fixed Rate Market was designed.