A fund is a smart contract that can execute operations. Funds have managers and are useful when a manager needs to create different strategies to operate the portfolios or accounts they are handling. Each fund can represent a unique DeFi investment strategy. For example, a manager can create a low risk fund to lend assets and a high risk fund to do ETH margin trades.
To invest in a fund, a deposit operation needs to be executed and to stop investing a withdraw operation. Accounts, portfolios or any other smart contract can invest in funds. When investing they will receive a fund token which represents an IOU token. For more information on funds operations please visit this page.
Funds' managers can execute operations. There is a main manager who can add and remove other managers. It is recommended to keep main manager accounts secure so, in case another manager account is hacked, the main manager can remove it.