Compound is currently the largest DeFi project as measured by the funds in the ecosystem. The protocol supports an algorithmic money market where users earn interest or borrow assets against collateral. Rates are adjusted automatically based on supply and demand. Anyone can participate in the lending and borrowing of their assets via Compound’s liquidity pool. Compound has transitioned to community governance where COMP token holders and their delegates vote on all changes to the protocol. 


More information here https://compound.finance/