C3 is a decentralized capital market powered by a cross-margin cross-collateralization clearing engine protocol. There is a wide gap between the DeFi and CeFi trading experience. Even though there is a wide variety of successful derivatives, lending and trading protocols across various blockchains, DeFi trading remains orders of magnitude smaller than centralized alternatives. We think this gap exists because liquidity is split between blockchains and protocols within each blockchain. This fragmentation of liquidity and financial products is hampering capital efficiency, creating a clunky user experience and limiting DeFi’s potential growth.